Home / 3,139.17-4,709.97-1,291.16

Finding the Fourth Proportional to 3,139.17, 4,709.97 and 1,291.16

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Solution

The fourth proportional to 3,139.17, 4,709.97 and 1,291.16 is: 1,937.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.17 : 4,709.97 = 1,291.16 : x
  2. Step 2: Convert to fraction form
    3,139.17/4,709.97 = 1,291.16/x
  3. Step 3: Cross multiply
    3,139.17x = 4,709.97 × 1,291.16
  4. Step 4: Simplify right side
    3,139.17x = 6,081,301.32
  5. Step 5: Solve for x
    x = 6,081,301.32/3,139.17
  6. Step 6: Final answer
    x = 1,937.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.