Home / 7,320.48-10,981.77-2,388.90

Finding the Fourth Proportional to 7,320.48, 10,981.77 and 2,388.90

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Solution

The fourth proportional to 7,320.48, 10,981.77 and 2,388.90 is: 3,583.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.48 : 10,981.77 = 2,388.90 : x
  2. Step 2: Convert to fraction form
    7,320.48/10,981.77 = 2,388.90/x
  3. Step 3: Cross multiply
    7,320.48x = 10,981.77 × 2,388.90
  4. Step 4: Simplify right side
    7,320.48x = 26,234,350.35
  5. Step 5: Solve for x
    x = 26,234,350.35/7,320.48
  6. Step 6: Final answer
    x = 3,583.69

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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.