Home / 5,688.26-8,531.55-1,990.22

Finding the Fourth Proportional to 5,688.26, 8,531.55 and 1,990.22

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Solution

The fourth proportional to 5,688.26, 8,531.55 and 1,990.22 is: 2,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.26 : 8,531.55 = 1,990.22 : x
  2. Step 2: Convert to fraction form
    5,688.26/8,531.55 = 1,990.22/x
  3. Step 3: Cross multiply
    5,688.26x = 8,531.55 × 1,990.22
  4. Step 4: Simplify right side
    5,688.26x = 16,979,661.44
  5. Step 5: Solve for x
    x = 16,979,661.44/5,688.26
  6. Step 6: Final answer
    x = 2,985.04

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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.