Home / 5,724.90-8,587.35-5,120.10

Finding the Fourth Proportional to 5,724.90, 8,587.35 and 5,120.10

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Solution

The fourth proportional to 5,724.90, 8,587.35 and 5,120.10 is: 7,680.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,724.90 : 8,587.35 = 5,120.10 : x
  2. Step 2: Convert to fraction form
    5,724.90/8,587.35 = 5,120.10/x
  3. Step 3: Cross multiply
    5,724.90x = 8,587.35 × 5,120.10
  4. Step 4: Simplify right side
    5,724.90x = 43,968,090.74
  5. Step 5: Solve for x
    x = 43,968,090.74/5,724.90
  6. Step 6: Final answer
    x = 7,680.15

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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.