Home / 4,445.28-6,135.92-2,872.16

Finding the Fourth Proportional to 4,445.28, 6,135.92 and 2,872.16

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Solution

The fourth proportional to 4,445.28, 6,135.92 and 2,872.16 is: 3,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,445.28 : 6,135.92 = 2,872.16 : x
  2. Step 2: Convert to fraction form
    4,445.28/6,135.92 = 2,872.16/x
  3. Step 3: Cross multiply
    4,445.28x = 6,135.92 × 2,872.16
  4. Step 4: Simplify right side
    4,445.28x = 17,623,343.99
  5. Step 5: Solve for x
    x = 17,623,343.99/4,445.28
  6. Step 6: Final answer
    x = 3,964.51

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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.