Home / 2,682.45-3,702.78-2,402.19

Finding the Fourth Proportional to 2,682.45, 3,702.78 and 2,402.19

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Solution

The fourth proportional to 2,682.45, 3,702.78 and 2,402.19 is: 3,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.45 : 3,702.78 = 2,402.19 : x
  2. Step 2: Convert to fraction form
    2,682.45/3,702.78 = 2,402.19/x
  3. Step 3: Cross multiply
    2,682.45x = 3,702.78 × 2,402.19
  4. Step 4: Simplify right side
    2,682.45x = 8,894,781.09
  5. Step 5: Solve for x
    x = 8,894,781.09/2,682.45
  6. Step 6: Final answer
    x = 3,315.92

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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.