Home / 5,121.32-7,677.40-2,000.59

Finding the Fourth Proportional to 5,121.32, 7,677.40 and 2,000.59

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Solution

The fourth proportional to 5,121.32, 7,677.40 and 2,000.59 is: 2,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.32 : 7,677.40 = 2,000.59 : x
  2. Step 2: Convert to fraction form
    5,121.32/7,677.40 = 2,000.59/x
  3. Step 3: Cross multiply
    5,121.32x = 7,677.40 × 2,000.59
  4. Step 4: Simplify right side
    5,121.32x = 15,359,352.41
  5. Step 5: Solve for x
    x = 15,359,352.41/5,121.32
  6. Step 6: Final answer
    x = 2,999.10

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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.