Home / 6,871.40-10,302.60-2,708.90

Finding the Fourth Proportional to 6,871.40, 10,302.60 and 2,708.90

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Solution

The fourth proportional to 6,871.40, 10,302.60 and 2,708.90 is: 4,061.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.40 : 10,302.60 = 2,708.90 : x
  2. Step 2: Convert to fraction form
    6,871.40/10,302.60 = 2,708.90/x
  3. Step 3: Cross multiply
    6,871.40x = 10,302.60 × 2,708.90
  4. Step 4: Simplify right side
    6,871.40x = 27,908,713.14
  5. Step 5: Solve for x
    x = 27,908,713.14/6,871.40
  6. Step 6: Final answer
    x = 4,061.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.