Home / 3,440.32-4,747.51-1,868.38

Finding the Fourth Proportional to 3,440.32, 4,747.51 and 1,868.38

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Solution

The fourth proportional to 3,440.32, 4,747.51 and 1,868.38 is: 2,578.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.32 : 4,747.51 = 1,868.38 : x
  2. Step 2: Convert to fraction form
    3,440.32/4,747.51 = 1,868.38/x
  3. Step 3: Cross multiply
    3,440.32x = 4,747.51 × 1,868.38
  4. Step 4: Simplify right side
    3,440.32x = 8,870,152.73
  5. Step 5: Solve for x
    x = 8,870,152.73/3,440.32
  6. Step 6: Final answer
    x = 2,578.29

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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.