Home / 5,127.89-7,080.28-3,141.16

Finding the Fourth Proportional to 5,127.89, 7,080.28 and 3,141.16

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Solution

The fourth proportional to 5,127.89, 7,080.28 and 3,141.16 is: 4,337.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.89 : 7,080.28 = 3,141.16 : x
  2. Step 2: Convert to fraction form
    5,127.89/7,080.28 = 3,141.16/x
  3. Step 3: Cross multiply
    5,127.89x = 7,080.28 × 3,141.16
  4. Step 4: Simplify right side
    5,127.89x = 22,240,292.32
  5. Step 5: Solve for x
    x = 22,240,292.32/5,127.89
  6. Step 6: Final answer
    x = 4,337.12

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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.