Home / 5,427.65-8,143.00-2,655.90

Finding the Fourth Proportional to 5,427.65, 8,143.00 and 2,655.90

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Solution

The fourth proportional to 5,427.65, 8,143.00 and 2,655.90 is: 3,984.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.65 : 8,143.00 = 2,655.90 : x
  2. Step 2: Convert to fraction form
    5,427.65/8,143.00 = 2,655.90/x
  3. Step 3: Cross multiply
    5,427.65x = 8,143.00 × 2,655.90
  4. Step 4: Simplify right side
    5,427.65x = 21,626,987.06
  5. Step 5: Solve for x
    x = 21,626,987.06/5,427.65
  6. Step 6: Final answer
    x = 3,984.59

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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.