Home / 2,341.16-3,512.38-781.30

Finding the Fourth Proportional to 2,341.16, 3,512.38 and 781.30

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Solution

The fourth proportional to 2,341.16, 3,512.38 and 781.30 is: 1,172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.16 : 3,512.38 = 781.30 : x
  2. Step 2: Convert to fraction form
    2,341.16/3,512.38 = 781.30/x
  3. Step 3: Cross multiply
    2,341.16x = 3,512.38 × 781.30
  4. Step 4: Simplify right side
    2,341.16x = 2,744,222.49
  5. Step 5: Solve for x
    x = 2,744,222.49/2,341.16
  6. Step 6: Final answer
    x = 1,172.16

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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.