Home / 6,854.40-9,458.92-3,870.18

Finding the Fourth Proportional to 6,854.40, 9,458.92 and 3,870.18

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Solution

The fourth proportional to 6,854.40, 9,458.92 and 3,870.18 is: 5,340.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,854.40 : 9,458.92 = 3,870.18 : x
  2. Step 2: Convert to fraction form
    6,854.40/9,458.92 = 3,870.18/x
  3. Step 3: Cross multiply
    6,854.40x = 9,458.92 × 3,870.18
  4. Step 4: Simplify right side
    6,854.40x = 36,607,723.01
  5. Step 5: Solve for x
    x = 36,607,723.01/6,854.40
  6. Step 6: Final answer
    x = 5,340.76

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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.