Home / 7,311.48-10,964.67-2,380.20

Finding the Fourth Proportional to 7,311.48, 10,964.67 and 2,380.20

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Solution

The fourth proportional to 7,311.48, 10,964.67 and 2,380.20 is: 3,569.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.48 : 10,964.67 = 2,380.20 : x
  2. Step 2: Convert to fraction form
    7,311.48/10,964.67 = 2,380.20/x
  3. Step 3: Cross multiply
    7,311.48x = 10,964.67 × 2,380.20
  4. Step 4: Simplify right side
    7,311.48x = 26,098,107.53
  5. Step 5: Solve for x
    x = 26,098,107.53/7,311.48
  6. Step 6: Final answer
    x = 3,569.47

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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.