Home / 3,139.39-4,332.34-1,742.14

Finding the Fourth Proportional to 3,139.39, 4,332.34 and 1,742.14

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Solution

The fourth proportional to 3,139.39, 4,332.34 and 1,742.14 is: 2,404.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.39 : 4,332.34 = 1,742.14 : x
  2. Step 2: Convert to fraction form
    3,139.39/4,332.34 = 1,742.14/x
  3. Step 3: Cross multiply
    3,139.39x = 4,332.34 × 1,742.14
  4. Step 4: Simplify right side
    3,139.39x = 7,547,549.28
  5. Step 5: Solve for x
    x = 7,547,549.28/3,139.39
  6. Step 6: Final answer
    x = 2,404.14

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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.