Home / 5,431.52-8,134.51-2,649.47

Finding the Fourth Proportional to 5,431.52, 8,134.51 and 2,649.47

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Solution

The fourth proportional to 5,431.52, 8,134.51 and 2,649.47 is: 3,967.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.52 : 8,134.51 = 2,649.47 : x
  2. Step 2: Convert to fraction form
    5,431.52/8,134.51 = 2,649.47/x
  3. Step 3: Cross multiply
    5,431.52x = 8,134.51 × 2,649.47
  4. Step 4: Simplify right side
    5,431.52x = 21,552,140.21
  5. Step 5: Solve for x
    x = 21,552,140.21/5,431.52
  6. Step 6: Final answer
    x = 3,967.98

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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.