Home / 5,412.11-8,115.12-1,713.65

Finding the Fourth Proportional to 5,412.11, 8,115.12 and 1,713.65

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Solution

The fourth proportional to 5,412.11, 8,115.12 and 1,713.65 is: 2,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.11 : 8,115.12 = 1,713.65 : x
  2. Step 2: Convert to fraction form
    5,412.11/8,115.12 = 1,713.65/x
  3. Step 3: Cross multiply
    5,412.11x = 8,115.12 × 1,713.65
  4. Step 4: Simplify right side
    5,412.11x = 13,906,434.81
  5. Step 5: Solve for x
    x = 13,906,434.81/5,412.11
  6. Step 6: Final answer
    x = 2,569.51

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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.