Home / 5,077.40-7,002.27-3,189.16

Finding the Fourth Proportional to 5,077.40, 7,002.27 and 3,189.16

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Solution

The fourth proportional to 5,077.40, 7,002.27 and 3,189.16 is: 4,398.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.40 : 7,002.27 = 3,189.16 : x
  2. Step 2: Convert to fraction form
    5,077.40/7,002.27 = 3,189.16/x
  3. Step 3: Cross multiply
    5,077.40x = 7,002.27 × 3,189.16
  4. Step 4: Simplify right side
    5,077.40x = 22,331,324.38
  5. Step 5: Solve for x
    x = 22,331,324.38/5,077.40
  6. Step 6: Final answer
    x = 4,398.18

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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.