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Finding the Fourth Proportional to 2,987.91, 4,483.11 and 1,600.89

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Solution

The fourth proportional to 2,987.91, 4,483.11 and 1,600.89 is: 2,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.91 : 4,483.11 = 1,600.89 : x
  2. Step 2: Convert to fraction form
    2,987.91/4,483.11 = 1,600.89/x
  3. Step 3: Cross multiply
    2,987.91x = 4,483.11 × 1,600.89
  4. Step 4: Simplify right side
    2,987.91x = 7,176,965.97
  5. Step 5: Solve for x
    x = 7,176,965.97/2,987.91
  6. Step 6: Final answer
    x = 2,402.00

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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.