Home / 5,514.47-7,610.64-3,156.56

Finding the Fourth Proportional to 5,514.47, 7,610.64 and 3,156.56

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Solution

The fourth proportional to 5,514.47, 7,610.64 and 3,156.56 is: 4,356.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.47 : 7,610.64 = 3,156.56 : x
  2. Step 2: Convert to fraction form
    5,514.47/7,610.64 = 3,156.56/x
  3. Step 3: Cross multiply
    5,514.47x = 7,610.64 × 3,156.56
  4. Step 4: Simplify right side
    5,514.47x = 24,023,441.80
  5. Step 5: Solve for x
    x = 24,023,441.80/5,514.47
  6. Step 6: Final answer
    x = 4,356.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.