Home / 3,412.90-5,115.66-1,654.18

Finding the Fourth Proportional to 3,412.90, 5,115.66 and 1,654.18

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Solution

The fourth proportional to 3,412.90, 5,115.66 and 1,654.18 is: 2,479.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.90 : 5,115.66 = 1,654.18 : x
  2. Step 2: Convert to fraction form
    3,412.90/5,115.66 = 1,654.18/x
  3. Step 3: Cross multiply
    3,412.90x = 5,115.66 × 1,654.18
  4. Step 4: Simplify right side
    3,412.90x = 8,462,222.46
  5. Step 5: Solve for x
    x = 8,462,222.46/3,412.90
  6. Step 6: Final answer
    x = 2,479.48

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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.