Home / 2,318.81-3,474.61-1,830.65

Finding the Fourth Proportional to 2,318.81, 3,474.61 and 1,830.65

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Solution

The fourth proportional to 2,318.81, 3,474.61 and 1,830.65 is: 2,743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.81 : 3,474.61 = 1,830.65 : x
  2. Step 2: Convert to fraction form
    2,318.81/3,474.61 = 1,830.65/x
  3. Step 3: Cross multiply
    2,318.81x = 3,474.61 × 1,830.65
  4. Step 4: Simplify right side
    2,318.81x = 6,360,772.85
  5. Step 5: Solve for x
    x = 6,360,772.85/2,318.81
  6. Step 6: Final answer
    x = 2,743.13

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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.