Home / 5,008.76-7,511.34-1,720.98

Finding the Fourth Proportional to 5,008.76, 7,511.34 and 1,720.98

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Solution

The fourth proportional to 5,008.76, 7,511.34 and 1,720.98 is: 2,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.76 : 7,511.34 = 1,720.98 : x
  2. Step 2: Convert to fraction form
    5,008.76/7,511.34 = 1,720.98/x
  3. Step 3: Cross multiply
    5,008.76x = 7,511.34 × 1,720.98
  4. Step 4: Simplify right side
    5,008.76x = 12,926,865.91
  5. Step 5: Solve for x
    x = 12,926,865.91/5,008.76
  6. Step 6: Final answer
    x = 2,580.85

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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.