Home / 3,531.39-4,865.83-2,899.79

Finding the Fourth Proportional to 3,531.39, 4,865.83 and 2,899.79

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Solution

The fourth proportional to 3,531.39, 4,865.83 and 2,899.79 is: 3,995.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.39 : 4,865.83 = 2,899.79 : x
  2. Step 2: Convert to fraction form
    3,531.39/4,865.83 = 2,899.79/x
  3. Step 3: Cross multiply
    3,531.39x = 4,865.83 × 2,899.79
  4. Step 4: Simplify right side
    3,531.39x = 14,109,885.18
  5. Step 5: Solve for x
    x = 14,109,885.18/3,531.39
  6. Step 6: Final answer
    x = 3,995.56

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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.