Home / 5,387.68-8,080.60-1,491.17

Finding the Fourth Proportional to 5,387.68, 8,080.60 and 1,491.17

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Solution

The fourth proportional to 5,387.68, 8,080.60 and 1,491.17 is: 2,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.68 : 8,080.60 = 1,491.17 : x
  2. Step 2: Convert to fraction form
    5,387.68/8,080.60 = 1,491.17/x
  3. Step 3: Cross multiply
    5,387.68x = 8,080.60 × 1,491.17
  4. Step 4: Simplify right side
    5,387.68x = 12,049,548.30
  5. Step 5: Solve for x
    x = 12,049,548.30/5,387.68
  6. Step 6: Final answer
    x = 2,236.50

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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.