Home / 2,645.28-3,642.16-2,246.15

Finding the Fourth Proportional to 2,645.28, 3,642.16 and 2,246.15

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Solution

The fourth proportional to 2,645.28, 3,642.16 and 2,246.15 is: 3,092.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.28 : 3,642.16 = 2,246.15 : x
  2. Step 2: Convert to fraction form
    2,645.28/3,642.16 = 2,246.15/x
  3. Step 3: Cross multiply
    2,645.28x = 3,642.16 × 2,246.15
  4. Step 4: Simplify right side
    2,645.28x = 8,180,837.68
  5. Step 5: Solve for x
    x = 8,180,837.68/2,645.28
  6. Step 6: Final answer
    x = 3,092.62

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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.