Home / 4,159.62-5,740.68-3,109.86

Finding the Fourth Proportional to 4,159.62, 5,740.68 and 3,109.86

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Solution

The fourth proportional to 4,159.62, 5,740.68 and 3,109.86 is: 4,291.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.62 : 5,740.68 = 3,109.86 : x
  2. Step 2: Convert to fraction form
    4,159.62/5,740.68 = 3,109.86/x
  3. Step 3: Cross multiply
    4,159.62x = 5,740.68 × 3,109.86
  4. Step 4: Simplify right side
    4,159.62x = 17,852,711.10
  5. Step 5: Solve for x
    x = 17,852,711.10/4,159.62
  6. Step 6: Final answer
    x = 4,291.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.