Home / 6,870.60-9,481.50-3,726.81

Finding the Fourth Proportional to 6,870.60, 9,481.50 and 3,726.81

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Solution

The fourth proportional to 6,870.60, 9,481.50 and 3,726.81 is: 5,143.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.60 : 9,481.50 = 3,726.81 : x
  2. Step 2: Convert to fraction form
    6,870.60/9,481.50 = 3,726.81/x
  3. Step 3: Cross multiply
    6,870.60x = 9,481.50 × 3,726.81
  4. Step 4: Simplify right side
    6,870.60x = 35,335,749.02
  5. Step 5: Solve for x
    x = 35,335,749.02/6,870.60
  6. Step 6: Final answer
    x = 5,143.04

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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.