Home / 5,097.60-7,646.40-1,635.20

Finding the Fourth Proportional to 5,097.60, 7,646.40 and 1,635.20

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Solution

The fourth proportional to 5,097.60, 7,646.40 and 1,635.20 is: 2,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.60 : 7,646.40 = 1,635.20 : x
  2. Step 2: Convert to fraction form
    5,097.60/7,646.40 = 1,635.20/x
  3. Step 3: Cross multiply
    5,097.60x = 7,646.40 × 1,635.20
  4. Step 4: Simplify right side
    5,097.60x = 12,503,393.28
  5. Step 5: Solve for x
    x = 12,503,393.28/5,097.60
  6. Step 6: Final answer
    x = 2,452.80

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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.