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Finding the Fourth Proportional to 1,341.49, 1,851.33 and 752.11

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Solution

The fourth proportional to 1,341.49, 1,851.33 and 752.11 is: 1,037.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.49 : 1,851.33 = 752.11 : x
  2. Step 2: Convert to fraction form
    1,341.49/1,851.33 = 752.11/x
  3. Step 3: Cross multiply
    1,341.49x = 1,851.33 × 752.11
  4. Step 4: Simplify right side
    1,341.49x = 1,392,403.81
  5. Step 5: Solve for x
    x = 1,392,403.81/1,341.49
  6. Step 6: Final answer
    x = 1,037.95

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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.