Home / 7,436.40-11,155.76-2,505.64

Finding the Fourth Proportional to 7,436.40, 11,155.76 and 2,505.64

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Solution

The fourth proportional to 7,436.40, 11,155.76 and 2,505.64 is: 3,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,436.40 : 11,155.76 = 2,505.64 : x
  2. Step 2: Convert to fraction form
    7,436.40/11,155.76 = 2,505.64/x
  3. Step 3: Cross multiply
    7,436.40x = 11,155.76 × 2,505.64
  4. Step 4: Simplify right side
    7,436.40x = 27,952,318.49
  5. Step 5: Solve for x
    x = 27,952,318.49/7,436.40
  6. Step 6: Final answer
    x = 3,758.85

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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.