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Finding the Fourth Proportional to 1,403.55, 1,937.52 and 844.11

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Solution

The fourth proportional to 1,403.55, 1,937.52 and 844.11 is: 1,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.55 : 1,937.52 = 844.11 : x
  2. Step 2: Convert to fraction form
    1,403.55/1,937.52 = 844.11/x
  3. Step 3: Cross multiply
    1,403.55x = 1,937.52 × 844.11
  4. Step 4: Simplify right side
    1,403.55x = 1,635,480.01
  5. Step 5: Solve for x
    x = 1,635,480.01/1,403.55
  6. Step 6: Final answer
    x = 1,165.25

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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.