Home / 5,739.60-8,609.40-4,281.60

Finding the Fourth Proportional to 5,739.60, 8,609.40 and 4,281.60

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Solution

The fourth proportional to 5,739.60, 8,609.40 and 4,281.60 is: 6,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.60 : 8,609.40 = 4,281.60 : x
  2. Step 2: Convert to fraction form
    5,739.60/8,609.40 = 4,281.60/x
  3. Step 3: Cross multiply
    5,739.60x = 8,609.40 × 4,281.60
  4. Step 4: Simplify right side
    5,739.60x = 36,862,007.04
  5. Step 5: Solve for x
    x = 36,862,007.04/5,739.60
  6. Step 6: Final answer
    x = 6,422.40

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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.