Home / 3,391.86-5,068.18-2,691.23

Finding the Fourth Proportional to 3,391.86, 5,068.18 and 2,691.23

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Solution

The fourth proportional to 3,391.86, 5,068.18 and 2,691.23 is: 4,021.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.86 : 5,068.18 = 2,691.23 : x
  2. Step 2: Convert to fraction form
    3,391.86/5,068.18 = 2,691.23/x
  3. Step 3: Cross multiply
    3,391.86x = 5,068.18 × 2,691.23
  4. Step 4: Simplify right side
    3,391.86x = 13,639,625.51
  5. Step 5: Solve for x
    x = 13,639,625.51/3,391.86
  6. Step 6: Final answer
    x = 4,021.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.