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Finding the Fourth Proportional to 5,987.40, 8,981.10 and 1,604.75

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Solution

The fourth proportional to 5,987.40, 8,981.10 and 1,604.75 is: 2,407.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.40 : 8,981.10 = 1,604.75 : x
  2. Step 2: Convert to fraction form
    5,987.40/8,981.10 = 1,604.75/x
  3. Step 3: Cross multiply
    5,987.40x = 8,981.10 × 1,604.75
  4. Step 4: Simplify right side
    5,987.40x = 14,412,420.23
  5. Step 5: Solve for x
    x = 14,412,420.23/5,987.40
  6. Step 6: Final answer
    x = 2,407.13

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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.