Home / 5,132.56-7,699.65-1,669

Finding the Fourth Proportional to 5,132.56, 7,699.65 and 1,669

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Solution

The fourth proportional to 5,132.56, 7,699.65 and 1,669 is: 2,503.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.56 : 7,699.65 = 1,669 : x
  2. Step 2: Convert to fraction form
    5,132.56/7,699.65 = 1,669/x
  3. Step 3: Cross multiply
    5,132.56x = 7,699.65 × 1,669
  4. Step 4: Simplify right side
    5,132.56x = 12,850,715.85
  5. Step 5: Solve for x
    x = 12,850,715.85/5,132.56
  6. Step 6: Final answer
    x = 2,503.76

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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.