Home / 5,130.56-7,084.32-3,555.92

Finding the Fourth Proportional to 5,130.56, 7,084.32 and 3,555.92

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Solution

The fourth proportional to 5,130.56, 7,084.32 and 3,555.92 is: 4,910.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.56 : 7,084.32 = 3,555.92 : x
  2. Step 2: Convert to fraction form
    5,130.56/7,084.32 = 3,555.92/x
  3. Step 3: Cross multiply
    5,130.56x = 7,084.32 × 3,555.92
  4. Step 4: Simplify right side
    5,130.56x = 25,191,275.17
  5. Step 5: Solve for x
    x = 25,191,275.17/5,130.56
  6. Step 6: Final answer
    x = 4,910.04

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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.