Home / 2,644.28-3,643.18-2,217.14

Finding the Fourth Proportional to 2,644.28, 3,643.18 and 2,217.14

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Solution

The fourth proportional to 2,644.28, 3,643.18 and 2,217.14 is: 3,054.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.28 : 3,643.18 = 2,217.14 : x
  2. Step 2: Convert to fraction form
    2,644.28/3,643.18 = 2,217.14/x
  3. Step 3: Cross multiply
    2,644.28x = 3,643.18 × 2,217.14
  4. Step 4: Simplify right side
    2,644.28x = 8,077,440.11
  5. Step 5: Solve for x
    x = 8,077,440.11/2,644.28
  6. Step 6: Final answer
    x = 3,054.68

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Half scale
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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.