Home / 2,678.32-4,007.70-2,613.52

Finding the Fourth Proportional to 2,678.32, 4,007.70 and 2,613.52

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Solution

The fourth proportional to 2,678.32, 4,007.70 and 2,613.52 is: 3,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.32 : 4,007.70 = 2,613.52 : x
  2. Step 2: Convert to fraction form
    2,678.32/4,007.70 = 2,613.52/x
  3. Step 3: Cross multiply
    2,678.32x = 4,007.70 × 2,613.52
  4. Step 4: Simplify right side
    2,678.32x = 10,474,204.10
  5. Step 5: Solve for x
    x = 10,474,204.10/2,678.32
  6. Step 6: Final answer
    x = 3,910.74

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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.