Home / 2,493.56-3,439.28-2,178.16

Finding the Fourth Proportional to 2,493.56, 3,439.28 and 2,178.16

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Solution

The fourth proportional to 2,493.56, 3,439.28 and 2,178.16 is: 3,004.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,493.56 : 3,439.28 = 2,178.16 : x
  2. Step 2: Convert to fraction form
    2,493.56/3,439.28 = 2,178.16/x
  3. Step 3: Cross multiply
    2,493.56x = 3,439.28 × 2,178.16
  4. Step 4: Simplify right side
    2,493.56x = 7,491,298.97
  5. Step 5: Solve for x
    x = 7,491,298.97/2,493.56
  6. Step 6: Final answer
    x = 3,004.26

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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.