Home / 4,445.28-6,129.36-3,123.36

Finding the Fourth Proportional to 4,445.28, 6,129.36 and 3,123.36

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Solution

The fourth proportional to 4,445.28, 6,129.36 and 3,123.36 is: 4,306.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,445.28 : 6,129.36 = 3,123.36 : x
  2. Step 2: Convert to fraction form
    4,445.28/6,129.36 = 3,123.36/x
  3. Step 3: Cross multiply
    4,445.28x = 6,129.36 × 3,123.36
  4. Step 4: Simplify right side
    4,445.28x = 19,144,197.85
  5. Step 5: Solve for x
    x = 19,144,197.85/4,445.28
  6. Step 6: Final answer
    x = 4,306.63

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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.