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Finding the Fourth Proportional to 6,668.66, 10,002.51 and 2,920.82

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Solution

The fourth proportional to 6,668.66, 10,002.51 and 2,920.82 is: 4,381.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.66 : 10,002.51 = 2,920.82 : x
  2. Step 2: Convert to fraction form
    6,668.66/10,002.51 = 2,920.82/x
  3. Step 3: Cross multiply
    6,668.66x = 10,002.51 × 2,920.82
  4. Step 4: Simplify right side
    6,668.66x = 29,215,531.26
  5. Step 5: Solve for x
    x = 29,215,531.26/6,668.66
  6. Step 6: Final answer
    x = 4,381.02

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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.