Home / 2,440.38-3,390.30-2,417.64

Finding the Fourth Proportional to 2,440.38, 3,390.30 and 2,417.64

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Solution

The fourth proportional to 2,440.38, 3,390.30 and 2,417.64 is: 3,358.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.38 : 3,390.30 = 2,417.64 : x
  2. Step 2: Convert to fraction form
    2,440.38/3,390.30 = 2,417.64/x
  3. Step 3: Cross multiply
    2,440.38x = 3,390.30 × 2,417.64
  4. Step 4: Simplify right side
    2,440.38x = 8,196,524.89
  5. Step 5: Solve for x
    x = 8,196,524.89/2,440.38
  6. Step 6: Final answer
    x = 3,358.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.