Home / 3,316.62-4,981.28-2,086.50

Finding the Fourth Proportional to 3,316.62, 4,981.28 and 2,086.50

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Solution

The fourth proportional to 3,316.62, 4,981.28 and 2,086.50 is: 3,133.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.62 : 4,981.28 = 2,086.50 : x
  2. Step 2: Convert to fraction form
    3,316.62/4,981.28 = 2,086.50/x
  3. Step 3: Cross multiply
    3,316.62x = 4,981.28 × 2,086.50
  4. Step 4: Simplify right side
    3,316.62x = 10,393,430.29
  5. Step 5: Solve for x
    x = 10,393,430.29/3,316.62
  6. Step 6: Final answer
    x = 3,133.74

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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.