Home / 4,811.28-6,618.60-4,211.28

Finding the Fourth Proportional to 4,811.28, 6,618.60 and 4,211.28

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Solution

The fourth proportional to 4,811.28, 6,618.60 and 4,211.28 is: 5,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.28 : 6,618.60 = 4,211.28 : x
  2. Step 2: Convert to fraction form
    4,811.28/6,618.60 = 4,211.28/x
  3. Step 3: Cross multiply
    4,811.28x = 6,618.60 × 4,211.28
  4. Step 4: Simplify right side
    4,811.28x = 27,872,777.81
  5. Step 5: Solve for x
    x = 27,872,777.81/4,811.28
  6. Step 6: Final answer
    x = 5,793.21

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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.