Home / 4,891.16-7,331.60-1,603.40

Finding the Fourth Proportional to 4,891.16, 7,331.60 and 1,603.40

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Solution

The fourth proportional to 4,891.16, 7,331.60 and 1,603.40 is: 2,403.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.16 : 7,331.60 = 1,603.40 : x
  2. Step 2: Convert to fraction form
    4,891.16/7,331.60 = 1,603.40/x
  3. Step 3: Cross multiply
    4,891.16x = 7,331.60 × 1,603.40
  4. Step 4: Simplify right side
    4,891.16x = 11,755,487.44
  5. Step 5: Solve for x
    x = 11,755,487.44/4,891.16
  6. Step 6: Final answer
    x = 2,403.42

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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.