Home / 6,870.08-9,480.60-3,885.92

Finding the Fourth Proportional to 6,870.08, 9,480.60 and 3,885.92

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Solution

The fourth proportional to 6,870.08, 9,480.60 and 3,885.92 is: 5,362.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.08 : 9,480.60 = 3,885.92 : x
  2. Step 2: Convert to fraction form
    6,870.08/9,480.60 = 3,885.92/x
  3. Step 3: Cross multiply
    6,870.08x = 9,480.60 × 3,885.92
  4. Step 4: Simplify right side
    6,870.08x = 36,840,853.15
  5. Step 5: Solve for x
    x = 36,840,853.15/6,870.08
  6. Step 6: Final answer
    x = 5,362.51

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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.