Home / 6,386.14-8,815.28-3,734.40

Finding the Fourth Proportional to 6,386.14, 8,815.28 and 3,734.40

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Solution

The fourth proportional to 6,386.14, 8,815.28 and 3,734.40 is: 5,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.14 : 8,815.28 = 3,734.40 : x
  2. Step 2: Convert to fraction form
    6,386.14/8,815.28 = 3,734.40/x
  3. Step 3: Cross multiply
    6,386.14x = 8,815.28 × 3,734.40
  4. Step 4: Simplify right side
    6,386.14x = 32,919,817.02
  5. Step 5: Solve for x
    x = 32,919,817.02/6,386.14
  6. Step 6: Final answer
    x = 5,154.88

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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.