Home / 3,615.81-5,423.61-1,150.78

Finding the Fourth Proportional to 3,615.81, 5,423.61 and 1,150.78

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Solution

The fourth proportional to 3,615.81, 5,423.61 and 1,150.78 is: 1,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.81 : 5,423.61 = 1,150.78 : x
  2. Step 2: Convert to fraction form
    3,615.81/5,423.61 = 1,150.78/x
  3. Step 3: Cross multiply
    3,615.81x = 5,423.61 × 1,150.78
  4. Step 4: Simplify right side
    3,615.81x = 6,241,381.92
  5. Step 5: Solve for x
    x = 6,241,381.92/3,615.81
  6. Step 6: Final answer
    x = 1,726.14

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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.