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Finding the Fourth Proportional to 3,149.66, 4,347.02 and 1,954.86

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Solution

The fourth proportional to 3,149.66, 4,347.02 and 1,954.86 is: 2,698.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.66 : 4,347.02 = 1,954.86 : x
  2. Step 2: Convert to fraction form
    3,149.66/4,347.02 = 1,954.86/x
  3. Step 3: Cross multiply
    3,149.66x = 4,347.02 × 1,954.86
  4. Step 4: Simplify right side
    3,149.66x = 8,497,805.74
  5. Step 5: Solve for x
    x = 8,497,805.74/3,149.66
  6. Step 6: Final answer
    x = 2,698.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.