Home / 5,191.76-7,162.86-3,095.80

Finding the Fourth Proportional to 5,191.76, 7,162.86 and 3,095.80

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Solution

The fourth proportional to 5,191.76, 7,162.86 and 3,095.80 is: 4,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.76 : 7,162.86 = 3,095.80 : x
  2. Step 2: Convert to fraction form
    5,191.76/7,162.86 = 3,095.80/x
  3. Step 3: Cross multiply
    5,191.76x = 7,162.86 × 3,095.80
  4. Step 4: Simplify right side
    5,191.76x = 22,174,781.99
  5. Step 5: Solve for x
    x = 22,174,781.99/5,191.76
  6. Step 6: Final answer
    x = 4,271.15

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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.