Home / 1,616.58-2,231.95-1,242.90

Finding the Fourth Proportional to 1,616.58, 2,231.95 and 1,242.90

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Solution

The fourth proportional to 1,616.58, 2,231.95 and 1,242.90 is: 1,716.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616.58 : 2,231.95 = 1,242.90 : x
  2. Step 2: Convert to fraction form
    1,616.58/2,231.95 = 1,242.90/x
  3. Step 3: Cross multiply
    1,616.58x = 2,231.95 × 1,242.90
  4. Step 4: Simplify right side
    1,616.58x = 2,774,081.97
  5. Step 5: Solve for x
    x = 2,774,081.97/1,616.58
  6. Step 6: Final answer
    x = 1,716.02

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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.