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Finding the Fourth Proportional to 1,842.28, 2,542.37 and 1,003

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Solution

The fourth proportional to 1,842.28, 2,542.37 and 1,003 is: 1,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.28 : 2,542.37 = 1,003 : x
  2. Step 2: Convert to fraction form
    1,842.28/2,542.37 = 1,003/x
  3. Step 3: Cross multiply
    1,842.28x = 2,542.37 × 1,003
  4. Step 4: Simplify right side
    1,842.28x = 2,549,997.11
  5. Step 5: Solve for x
    x = 2,549,997.11/1,842.28
  6. Step 6: Final answer
    x = 1,384.15

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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.