Home / 7,158.08-10,740.31-2,775.88

Finding the Fourth Proportional to 7,158.08, 10,740.31 and 2,775.88

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Solution

The fourth proportional to 7,158.08, 10,740.31 and 2,775.88 is: 4,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.08 : 10,740.31 = 2,775.88 : x
  2. Step 2: Convert to fraction form
    7,158.08/10,740.31 = 2,775.88/x
  3. Step 3: Cross multiply
    7,158.08x = 10,740.31 × 2,775.88
  4. Step 4: Simplify right side
    7,158.08x = 29,813,777.93
  5. Step 5: Solve for x
    x = 29,813,777.93/7,158.08
  6. Step 6: Final answer
    x = 4,165.05

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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.