Home / 6,680.32-10,021.28-2,981.60

Finding the Fourth Proportional to 6,680.32, 10,021.28 and 2,981.60

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Solution

The fourth proportional to 6,680.32, 10,021.28 and 2,981.60 is: 4,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.32 : 10,021.28 = 2,981.60 : x
  2. Step 2: Convert to fraction form
    6,680.32/10,021.28 = 2,981.60/x
  3. Step 3: Cross multiply
    6,680.32x = 10,021.28 × 2,981.60
  4. Step 4: Simplify right side
    6,680.32x = 29,879,448.45
  5. Step 5: Solve for x
    x = 29,879,448.45/6,680.32
  6. Step 6: Final answer
    x = 4,472.76

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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.