Home / 1,517.04-2,271.90-865.80

Finding the Fourth Proportional to 1,517.04, 2,271.90 and 865.80

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Solution

The fourth proportional to 1,517.04, 2,271.90 and 865.80 is: 1,296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.04 : 2,271.90 = 865.80 : x
  2. Step 2: Convert to fraction form
    1,517.04/2,271.90 = 865.80/x
  3. Step 3: Cross multiply
    1,517.04x = 2,271.90 × 865.80
  4. Step 4: Simplify right side
    1,517.04x = 1,967,011.02
  5. Step 5: Solve for x
    x = 1,967,011.02/1,517.04
  6. Step 6: Final answer
    x = 1,296.61

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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.