Home / 6,870.39-9,481.23-3,726.57

Finding the Fourth Proportional to 6,870.39, 9,481.23 and 3,726.57

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Solution

The fourth proportional to 6,870.39, 9,481.23 and 3,726.57 is: 5,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.39 : 9,481.23 = 3,726.57 : x
  2. Step 2: Convert to fraction form
    6,870.39/9,481.23 = 3,726.57/x
  3. Step 3: Cross multiply
    6,870.39x = 9,481.23 × 3,726.57
  4. Step 4: Simplify right side
    6,870.39x = 35,332,467.28
  5. Step 5: Solve for x
    x = 35,332,467.28/6,870.39
  6. Step 6: Final answer
    x = 5,142.72

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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.