Home / 7,337.20-11,005.80-2,143.08

Finding the Fourth Proportional to 7,337.20, 11,005.80 and 2,143.08

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Solution

The fourth proportional to 7,337.20, 11,005.80 and 2,143.08 is: 3,214.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,337.20 : 11,005.80 = 2,143.08 : x
  2. Step 2: Convert to fraction form
    7,337.20/11,005.80 = 2,143.08/x
  3. Step 3: Cross multiply
    7,337.20x = 11,005.80 × 2,143.08
  4. Step 4: Simplify right side
    7,337.20x = 23,586,309.86
  5. Step 5: Solve for x
    x = 23,586,309.86/7,337.20
  6. Step 6: Final answer
    x = 3,214.62

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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.