Home / 3,123.24-4,307.46-2,816.04

Finding the Fourth Proportional to 3,123.24, 4,307.46 and 2,816.04

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Solution

The fourth proportional to 3,123.24, 4,307.46 and 2,816.04 is: 3,883.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.24 : 4,307.46 = 2,816.04 : x
  2. Step 2: Convert to fraction form
    3,123.24/4,307.46 = 2,816.04/x
  3. Step 3: Cross multiply
    3,123.24x = 4,307.46 × 2,816.04
  4. Step 4: Simplify right side
    3,123.24x = 12,129,979.66
  5. Step 5: Solve for x
    x = 12,129,979.66/3,123.24
  6. Step 6: Final answer
    x = 3,883.78

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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.