Home / 3,211.23-4,431.27-1,884.76

Finding the Fourth Proportional to 3,211.23, 4,431.27 and 1,884.76

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Solution

The fourth proportional to 3,211.23, 4,431.27 and 1,884.76 is: 2,600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.23 : 4,431.27 = 1,884.76 : x
  2. Step 2: Convert to fraction form
    3,211.23/4,431.27 = 1,884.76/x
  3. Step 3: Cross multiply
    3,211.23x = 4,431.27 × 1,884.76
  4. Step 4: Simplify right side
    3,211.23x = 8,351,880.45
  5. Step 5: Solve for x
    x = 8,351,880.45/3,211.23
  6. Step 6: Final answer
    x = 2,600.84

Related Problems

Find fourth proportional to 1,605.62, 2,215.64 and 942.38
Half scale
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Double scale
Find fourth proportional to 3,212.23, 4,432.65 and 1,885.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.