Home / 5,409.68-8,115.92-1,514.12

Finding the Fourth Proportional to 5,409.68, 8,115.92 and 1,514.12

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Solution

The fourth proportional to 5,409.68, 8,115.92 and 1,514.12 is: 2,271.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.68 : 8,115.92 = 1,514.12 : x
  2. Step 2: Convert to fraction form
    5,409.68/8,115.92 = 1,514.12/x
  3. Step 3: Cross multiply
    5,409.68x = 8,115.92 × 1,514.12
  4. Step 4: Simplify right side
    5,409.68x = 12,288,476.79
  5. Step 5: Solve for x
    x = 12,288,476.79/5,409.68
  6. Step 6: Final answer
    x = 2,271.57

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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.