Home / 3,255.40-4,493.03-1,929.56

Finding the Fourth Proportional to 3,255.40, 4,493.03 and 1,929.56

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Solution

The fourth proportional to 3,255.40, 4,493.03 and 1,929.56 is: 2,663.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.40 : 4,493.03 = 1,929.56 : x
  2. Step 2: Convert to fraction form
    3,255.40/4,493.03 = 1,929.56/x
  3. Step 3: Cross multiply
    3,255.40x = 4,493.03 × 1,929.56
  4. Step 4: Simplify right side
    3,255.40x = 8,669,572.55
  5. Step 5: Solve for x
    x = 8,669,572.55/3,255.40
  6. Step 6: Final answer
    x = 2,663.14

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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.