Home / 3,616.19-4,988.86-2,356.78

Finding the Fourth Proportional to 3,616.19, 4,988.86 and 2,356.78

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Solution

The fourth proportional to 3,616.19, 4,988.86 and 2,356.78 is: 3,251.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.19 : 4,988.86 = 2,356.78 : x
  2. Step 2: Convert to fraction form
    3,616.19/4,988.86 = 2,356.78/x
  3. Step 3: Cross multiply
    3,616.19x = 4,988.86 × 2,356.78
  4. Step 4: Simplify right side
    3,616.19x = 11,757,645.47
  5. Step 5: Solve for x
    x = 11,757,645.47/3,616.19
  6. Step 6: Final answer
    x = 3,251.39

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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.