Home / 5,008.68-7,511.60-1,720.64

Finding the Fourth Proportional to 5,008.68, 7,511.60 and 1,720.64

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Solution

The fourth proportional to 5,008.68, 7,511.60 and 1,720.64 is: 2,580.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.68 : 7,511.60 = 1,720.64 : x
  2. Step 2: Convert to fraction form
    5,008.68/7,511.60 = 1,720.64/x
  3. Step 3: Cross multiply
    5,008.68x = 7,511.60 × 1,720.64
  4. Step 4: Simplify right side
    5,008.68x = 12,924,759.42
  5. Step 5: Solve for x
    x = 12,924,759.42/5,008.68
  6. Step 6: Final answer
    x = 2,580.47

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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.