Home / 1,165.98-1,748.42-425.58

Finding the Fourth Proportional to 1,165.98, 1,748.42 and 425.58

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Solution

The fourth proportional to 1,165.98, 1,748.42 and 425.58 is: 638.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.98 : 1,748.42 = 425.58 : x
  2. Step 2: Convert to fraction form
    1,165.98/1,748.42 = 425.58/x
  3. Step 3: Cross multiply
    1,165.98x = 1,748.42 × 425.58
  4. Step 4: Simplify right side
    1,165.98x = 744,092.58
  5. Step 5: Solve for x
    x = 744,092.58/1,165.98
  6. Step 6: Final answer
    x = 638.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.