Home / 5,412.64-8,118.96-1,517.08

Finding the Fourth Proportional to 5,412.64, 8,118.96 and 1,517.08

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Solution

The fourth proportional to 5,412.64, 8,118.96 and 1,517.08 is: 2,275.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.64 : 8,118.96 = 1,517.08 : x
  2. Step 2: Convert to fraction form
    5,412.64/8,118.96 = 1,517.08/x
  3. Step 3: Cross multiply
    5,412.64x = 8,118.96 × 1,517.08
  4. Step 4: Simplify right side
    5,412.64x = 12,317,111.84
  5. Step 5: Solve for x
    x = 12,317,111.84/5,412.64
  6. Step 6: Final answer
    x = 2,275.62

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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.