Home / 3,531.25-4,872.85-1,937.64

Finding the Fourth Proportional to 3,531.25, 4,872.85 and 1,937.64

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Solution

The fourth proportional to 3,531.25, 4,872.85 and 1,937.64 is: 2,673.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.25 : 4,872.85 = 1,937.64 : x
  2. Step 2: Convert to fraction form
    3,531.25/4,872.85 = 1,937.64/x
  3. Step 3: Cross multiply
    3,531.25x = 4,872.85 × 1,937.64
  4. Step 4: Simplify right side
    3,531.25x = 9,441,829.07
  5. Step 5: Solve for x
    x = 9,441,829.07/3,531.25
  6. Step 6: Final answer
    x = 2,673.79

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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.