Home / 3,151.30-4,347.53-1,892.42

Finding the Fourth Proportional to 3,151.30, 4,347.53 and 1,892.42

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Solution

The fourth proportional to 3,151.30, 4,347.53 and 1,892.42 is: 2,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.30 : 4,347.53 = 1,892.42 : x
  2. Step 2: Convert to fraction form
    3,151.30/4,347.53 = 1,892.42/x
  3. Step 3: Cross multiply
    3,151.30x = 4,347.53 × 1,892.42
  4. Step 4: Simplify right side
    3,151.30x = 8,227,343.26
  5. Step 5: Solve for x
    x = 8,227,343.26/3,151.30
  6. Step 6: Final answer
    x = 2,610.78

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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.