Home / 3,431.60-5,147.40-2,394.80

Finding the Fourth Proportional to 3,431.60, 5,147.40 and 2,394.80

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Solution

The fourth proportional to 3,431.60, 5,147.40 and 2,394.80 is: 3,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.60 : 5,147.40 = 2,394.80 : x
  2. Step 2: Convert to fraction form
    3,431.60/5,147.40 = 2,394.80/x
  3. Step 3: Cross multiply
    3,431.60x = 5,147.40 × 2,394.80
  4. Step 4: Simplify right side
    3,431.60x = 12,326,993.52
  5. Step 5: Solve for x
    x = 12,326,993.52/3,431.60
  6. Step 6: Final answer
    x = 3,592.20

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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.