Home / 5,687.70-8,530.35-2,176.55

Finding the Fourth Proportional to 5,687.70, 8,530.35 and 2,176.55

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Solution

The fourth proportional to 5,687.70, 8,530.35 and 2,176.55 is: 3,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.70 : 8,530.35 = 2,176.55 : x
  2. Step 2: Convert to fraction form
    5,687.70/8,530.35 = 2,176.55/x
  3. Step 3: Cross multiply
    5,687.70x = 8,530.35 × 2,176.55
  4. Step 4: Simplify right side
    5,687.70x = 18,566,690.64
  5. Step 5: Solve for x
    x = 18,566,690.64/5,687.70
  6. Step 6: Final answer
    x = 3,264.36

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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.