Home / 2,614.08-3,921.12-1,316.64

Finding the Fourth Proportional to 2,614.08, 3,921.12 and 1,316.64

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Solution

The fourth proportional to 2,614.08, 3,921.12 and 1,316.64 is: 1,974.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,614.08 : 3,921.12 = 1,316.64 : x
  2. Step 2: Convert to fraction form
    2,614.08/3,921.12 = 1,316.64/x
  3. Step 3: Cross multiply
    2,614.08x = 3,921.12 × 1,316.64
  4. Step 4: Simplify right side
    2,614.08x = 5,162,703.44
  5. Step 5: Solve for x
    x = 5,162,703.44/2,614.08
  6. Step 6: Final answer
    x = 1,974.96

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.