Home / 1,603.04-2,403.18-628.91

Finding the Fourth Proportional to 1,603.04, 2,403.18 and 628.91

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Solution

The fourth proportional to 1,603.04, 2,403.18 and 628.91 is: 942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.04 : 2,403.18 = 628.91 : x
  2. Step 2: Convert to fraction form
    1,603.04/2,403.18 = 628.91/x
  3. Step 3: Cross multiply
    1,603.04x = 2,403.18 × 628.91
  4. Step 4: Simplify right side
    1,603.04x = 1,511,378.57
  5. Step 5: Solve for x
    x = 1,511,378.57/1,603.04
  6. Step 6: Final answer
    x = 942.82

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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.