Home / 2,616.50-3,943.12-2,356.80

Finding the Fourth Proportional to 2,616.50, 3,943.12 and 2,356.80

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Solution

The fourth proportional to 2,616.50, 3,943.12 and 2,356.80 is: 3,551.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.50 : 3,943.12 = 2,356.80 : x
  2. Step 2: Convert to fraction form
    2,616.50/3,943.12 = 2,356.80/x
  3. Step 3: Cross multiply
    2,616.50x = 3,943.12 × 2,356.80
  4. Step 4: Simplify right side
    2,616.50x = 9,293,145.22
  5. Step 5: Solve for x
    x = 9,293,145.22/2,616.50
  6. Step 6: Final answer
    x = 3,551.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.