Home / 5,159.03-7,120.98-3,168.86

Finding the Fourth Proportional to 5,159.03, 7,120.98 and 3,168.86

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Solution

The fourth proportional to 5,159.03, 7,120.98 and 3,168.86 is: 4,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.03 : 7,120.98 = 3,168.86 : x
  2. Step 2: Convert to fraction form
    5,159.03/7,120.98 = 3,168.86/x
  3. Step 3: Cross multiply
    5,159.03x = 7,120.98 × 3,168.86
  4. Step 4: Simplify right side
    5,159.03x = 22,565,353.08
  5. Step 5: Solve for x
    x = 22,565,353.08/5,159.03
  6. Step 6: Final answer
    x = 4,373.96

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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.