Home / 5,720.50-8,580.75-2,257.75

Finding the Fourth Proportional to 5,720.50, 8,580.75 and 2,257.75

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Solution

The fourth proportional to 5,720.50, 8,580.75 and 2,257.75 is: 3,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.50 : 8,580.75 = 2,257.75 : x
  2. Step 2: Convert to fraction form
    5,720.50/8,580.75 = 2,257.75/x
  3. Step 3: Cross multiply
    5,720.50x = 8,580.75 × 2,257.75
  4. Step 4: Simplify right side
    5,720.50x = 19,373,188.31
  5. Step 5: Solve for x
    x = 19,373,188.31/5,720.50
  6. Step 6: Final answer
    x = 3,386.63

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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.