Home / 1,771.40-2,444.55-974.76

Finding the Fourth Proportional to 1,771.40, 2,444.55 and 974.76

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Solution

The fourth proportional to 1,771.40, 2,444.55 and 974.76 is: 1,345.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.40 : 2,444.55 = 974.76 : x
  2. Step 2: Convert to fraction form
    1,771.40/2,444.55 = 974.76/x
  3. Step 3: Cross multiply
    1,771.40x = 2,444.55 × 974.76
  4. Step 4: Simplify right side
    1,771.40x = 2,382,849.56
  5. Step 5: Solve for x
    x = 2,382,849.56/1,771.40
  6. Step 6: Final answer
    x = 1,345.18

Related Problems

Find fourth proportional to 885.70, 1,222.28 and 487.38
Half scale
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Double scale
Find fourth proportional to 1,772.40, 2,445.93 and 975.76
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.