Home / 3,670.14-5,505.38-1,478.57

Finding the Fourth Proportional to 3,670.14, 5,505.38 and 1,478.57

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Solution

The fourth proportional to 3,670.14, 5,505.38 and 1,478.57 is: 2,217.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.14 : 5,505.38 = 1,478.57 : x
  2. Step 2: Convert to fraction form
    3,670.14/5,505.38 = 1,478.57/x
  3. Step 3: Cross multiply
    3,670.14x = 5,505.38 × 1,478.57
  4. Step 4: Simplify right side
    3,670.14x = 8,140,089.71
  5. Step 5: Solve for x
    x = 8,140,089.71/3,670.14
  6. Step 6: Final answer
    x = 2,217.92

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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.