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Finding the Fourth Proportional to 5,980.11, 8,970.17 and 2,859.38

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Solution

The fourth proportional to 5,980.11, 8,970.17 and 2,859.38 is: 4,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,980.11 : 8,970.17 = 2,859.38 : x
  2. Step 2: Convert to fraction form
    5,980.11/8,970.17 = 2,859.38/x
  3. Step 3: Cross multiply
    5,980.11x = 8,970.17 × 2,859.38
  4. Step 4: Simplify right side
    5,980.11x = 25,649,124.69
  5. Step 5: Solve for x
    x = 25,649,124.69/5,980.11
  6. Step 6: Final answer
    x = 4,289.07

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Double scale
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Similar ratio
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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.