Home / 7,426.28-11,139.42-3,045.80

Finding the Fourth Proportional to 7,426.28, 11,139.42 and 3,045.80

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Solution

The fourth proportional to 7,426.28, 11,139.42 and 3,045.80 is: 4,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.28 : 11,139.42 = 3,045.80 : x
  2. Step 2: Convert to fraction form
    7,426.28/11,139.42 = 3,045.80/x
  3. Step 3: Cross multiply
    7,426.28x = 11,139.42 × 3,045.80
  4. Step 4: Simplify right side
    7,426.28x = 33,928,445.44
  5. Step 5: Solve for x
    x = 33,928,445.44/7,426.28
  6. Step 6: Final answer
    x = 4,568.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.