Home / 2,319.16-3,474.39-1,147.80

Finding the Fourth Proportional to 2,319.16, 3,474.39 and 1,147.80

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Solution

The fourth proportional to 2,319.16, 3,474.39 and 1,147.80 is: 1,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.16 : 3,474.39 = 1,147.80 : x
  2. Step 2: Convert to fraction form
    2,319.16/3,474.39 = 1,147.80/x
  3. Step 3: Cross multiply
    2,319.16x = 3,474.39 × 1,147.80
  4. Step 4: Simplify right side
    2,319.16x = 3,987,904.84
  5. Step 5: Solve for x
    x = 3,987,904.84/2,319.16
  6. Step 6: Final answer
    x = 1,719.55

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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.