Home / 6,869.14-9,480.78-3,885.02

Finding the Fourth Proportional to 6,869.14, 9,480.78 and 3,885.02

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Solution

The fourth proportional to 6,869.14, 9,480.78 and 3,885.02 is: 5,362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.14 : 9,480.78 = 3,885.02 : x
  2. Step 2: Convert to fraction form
    6,869.14/9,480.78 = 3,885.02/x
  3. Step 3: Cross multiply
    6,869.14x = 9,480.78 × 3,885.02
  4. Step 4: Simplify right side
    6,869.14x = 36,833,019.92
  5. Step 5: Solve for x
    x = 36,833,019.92/6,869.14
  6. Step 6: Final answer
    x = 5,362.10

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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.