Home / 7,276.40-10,913.28-2,081.04

Finding the Fourth Proportional to 7,276.40, 10,913.28 and 2,081.04

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Solution

The fourth proportional to 7,276.40, 10,913.28 and 2,081.04 is: 3,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.40 : 10,913.28 = 2,081.04 : x
  2. Step 2: Convert to fraction form
    7,276.40/10,913.28 = 2,081.04/x
  3. Step 3: Cross multiply
    7,276.40x = 10,913.28 × 2,081.04
  4. Step 4: Simplify right side
    7,276.40x = 22,710,972.21
  5. Step 5: Solve for x
    x = 22,710,972.21/7,276.40
  6. Step 6: Final answer
    x = 3,121.18

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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.