Home / 2,431.92-3,354.26-1,685.90

Finding the Fourth Proportional to 2,431.92, 3,354.26 and 1,685.90

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Solution

The fourth proportional to 2,431.92, 3,354.26 and 1,685.90 is: 2,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.92 : 3,354.26 = 1,685.90 : x
  2. Step 2: Convert to fraction form
    2,431.92/3,354.26 = 1,685.90/x
  3. Step 3: Cross multiply
    2,431.92x = 3,354.26 × 1,685.90
  4. Step 4: Simplify right side
    2,431.92x = 5,654,946.93
  5. Step 5: Solve for x
    x = 5,654,946.93/2,431.92
  6. Step 6: Final answer
    x = 2,325.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.