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Finding the Fourth Proportional to 1,341.66, 1,851.42 and 752.10

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Solution

The fourth proportional to 1,341.66, 1,851.42 and 752.10 is: 1,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.66 : 1,851.42 = 752.10 : x
  2. Step 2: Convert to fraction form
    1,341.66/1,851.42 = 752.10/x
  3. Step 3: Cross multiply
    1,341.66x = 1,851.42 × 752.10
  4. Step 4: Simplify right side
    1,341.66x = 1,392,452.98
  5. Step 5: Solve for x
    x = 1,392,452.98/1,341.66
  6. Step 6: Final answer
    x = 1,037.86

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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.