Home / 5,445.68-8,169.14-2,159.06

Finding the Fourth Proportional to 5,445.68, 8,169.14 and 2,159.06

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Solution

The fourth proportional to 5,445.68, 8,169.14 and 2,159.06 is: 3,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.68 : 8,169.14 = 2,159.06 : x
  2. Step 2: Convert to fraction form
    5,445.68/8,169.14 = 2,159.06/x
  3. Step 3: Cross multiply
    5,445.68x = 8,169.14 × 2,159.06
  4. Step 4: Simplify right side
    5,445.68x = 17,637,627.96
  5. Step 5: Solve for x
    x = 17,637,627.96/5,445.68
  6. Step 6: Final answer
    x = 3,238.83

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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.