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Finding the Fourth Proportional to 1,041.03, 1,435.32 and 761.04

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Solution

The fourth proportional to 1,041.03, 1,435.32 and 761.04 is: 1,049.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.03 : 1,435.32 = 761.04 : x
  2. Step 2: Convert to fraction form
    1,041.03/1,435.32 = 761.04/x
  3. Step 3: Cross multiply
    1,041.03x = 1,435.32 × 761.04
  4. Step 4: Simplify right side
    1,041.03x = 1,092,335.93
  5. Step 5: Solve for x
    x = 1,092,335.93/1,041.03
  6. Step 6: Final answer
    x = 1,049.28

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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.