Home / 3,391.65-4,672.49-3,187.53

Finding the Fourth Proportional to 3,391.65, 4,672.49 and 3,187.53

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Solution

The fourth proportional to 3,391.65, 4,672.49 and 3,187.53 is: 4,391.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.65 : 4,672.49 = 3,187.53 : x
  2. Step 2: Convert to fraction form
    3,391.65/4,672.49 = 3,187.53/x
  3. Step 3: Cross multiply
    3,391.65x = 4,672.49 × 3,187.53
  4. Step 4: Simplify right side
    3,391.65x = 14,893,686.11
  5. Step 5: Solve for x
    x = 14,893,686.11/3,391.65
  6. Step 6: Final answer
    x = 4,391.28

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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.