Home / 7,520.16-11,280.16-2,899.92

Finding the Fourth Proportional to 7,520.16, 11,280.16 and 2,899.92

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Solution

The fourth proportional to 7,520.16, 11,280.16 and 2,899.92 is: 4,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.16 : 11,280.16 = 2,899.92 : x
  2. Step 2: Convert to fraction form
    7,520.16/11,280.16 = 2,899.92/x
  3. Step 3: Cross multiply
    7,520.16x = 11,280.16 × 2,899.92
  4. Step 4: Simplify right side
    7,520.16x = 32,711,561.59
  5. Step 5: Solve for x
    x = 32,711,561.59/7,520.16
  6. Step 6: Final answer
    x = 4,349.85

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Half scale
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Double scale
Find fourth proportional to 7,521.16, 11,281.66 and 2,900.92
Similar ratio
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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.