Home / 3,248.56-4,479.96-2,188.72

Finding the Fourth Proportional to 3,248.56, 4,479.96 and 2,188.72

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Solution

The fourth proportional to 3,248.56, 4,479.96 and 2,188.72 is: 3,018.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,248.56 : 4,479.96 = 2,188.72 : x
  2. Step 2: Convert to fraction form
    3,248.56/4,479.96 = 2,188.72/x
  3. Step 3: Cross multiply
    3,248.56x = 4,479.96 × 2,188.72
  4. Step 4: Simplify right side
    3,248.56x = 9,805,378.05
  5. Step 5: Solve for x
    x = 9,805,378.05/3,248.56
  6. Step 6: Final answer
    x = 3,018.38

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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.