Home / 2,318.65-3,473.60-1,147.30

Finding the Fourth Proportional to 2,318.65, 3,473.60 and 1,147.30

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Solution

The fourth proportional to 2,318.65, 3,473.60 and 1,147.30 is: 1,718.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.65 : 3,473.60 = 1,147.30 : x
  2. Step 2: Convert to fraction form
    2,318.65/3,473.60 = 1,147.30/x
  3. Step 3: Cross multiply
    2,318.65x = 3,473.60 × 1,147.30
  4. Step 4: Simplify right side
    2,318.65x = 3,985,246.86
  5. Step 5: Solve for x
    x = 3,985,246.86/2,318.65
  6. Step 6: Final answer
    x = 1,718.78

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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.