Home / 5,685.93-8,528.90-2,220.75

Finding the Fourth Proportional to 5,685.93, 8,528.90 and 2,220.75

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Solution

The fourth proportional to 5,685.93, 8,528.90 and 2,220.75 is: 3,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.93 : 8,528.90 = 2,220.75 : x
  2. Step 2: Convert to fraction form
    5,685.93/8,528.90 = 2,220.75/x
  3. Step 3: Cross multiply
    5,685.93x = 8,528.90 × 2,220.75
  4. Step 4: Simplify right side
    5,685.93x = 18,940,543.57
  5. Step 5: Solve for x
    x = 18,940,543.57/5,685.93
  6. Step 6: Final answer
    x = 3,331.13

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Half scale
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Double scale
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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.