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Finding the Fourth Proportional to 5,720.12, 8,580.60 and 1,824.50

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Solution

The fourth proportional to 5,720.12, 8,580.60 and 1,824.50 is: 2,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.12 : 8,580.60 = 1,824.50 : x
  2. Step 2: Convert to fraction form
    5,720.12/8,580.60 = 1,824.50/x
  3. Step 3: Cross multiply
    5,720.12x = 8,580.60 × 1,824.50
  4. Step 4: Simplify right side
    5,720.12x = 15,655,304.70
  5. Step 5: Solve for x
    x = 15,655,304.70/5,720.12
  6. Step 6: Final answer
    x = 2,736.88

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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.