Home / 5,221.72-7,207.14-3,127.06

Finding the Fourth Proportional to 5,221.72, 7,207.14 and 3,127.06

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Solution

The fourth proportional to 5,221.72, 7,207.14 and 3,127.06 is: 4,316.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.72 : 7,207.14 = 3,127.06 : x
  2. Step 2: Convert to fraction form
    5,221.72/7,207.14 = 3,127.06/x
  3. Step 3: Cross multiply
    5,221.72x = 7,207.14 × 3,127.06
  4. Step 4: Simplify right side
    5,221.72x = 22,537,159.21
  5. Step 5: Solve for x
    x = 22,537,159.21/5,221.72
  6. Step 6: Final answer
    x = 4,316.04

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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.