Home / 7,336.08-10,123.78-3,979.02

Finding the Fourth Proportional to 7,336.08, 10,123.78 and 3,979.02

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Solution

The fourth proportional to 7,336.08, 10,123.78 and 3,979.02 is: 5,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,336.08 : 10,123.78 = 3,979.02 : x
  2. Step 2: Convert to fraction form
    7,336.08/10,123.78 = 3,979.02/x
  3. Step 3: Cross multiply
    7,336.08x = 10,123.78 × 3,979.02
  4. Step 4: Simplify right side
    7,336.08x = 40,282,723.10
  5. Step 5: Solve for x
    x = 40,282,723.10/7,336.08
  6. Step 6: Final answer
    x = 5,491.04

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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.