Home / 7,020.56-9,688.92-3,877.04

Finding the Fourth Proportional to 7,020.56, 9,688.92 and 3,877.04

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Solution

The fourth proportional to 7,020.56, 9,688.92 and 3,877.04 is: 5,350.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.56 : 9,688.92 = 3,877.04 : x
  2. Step 2: Convert to fraction form
    7,020.56/9,688.92 = 3,877.04/x
  3. Step 3: Cross multiply
    7,020.56x = 9,688.92 × 3,877.04
  4. Step 4: Simplify right side
    7,020.56x = 37,564,330.40
  5. Step 5: Solve for x
    x = 37,564,330.40/7,020.56
  6. Step 6: Final answer
    x = 5,350.62

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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.