Home / 2,685.80-4,028.74-1,652.42

Finding the Fourth Proportional to 2,685.80, 4,028.74 and 1,652.42

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Solution

The fourth proportional to 2,685.80, 4,028.74 and 1,652.42 is: 2,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.80 : 4,028.74 = 1,652.42 : x
  2. Step 2: Convert to fraction form
    2,685.80/4,028.74 = 1,652.42/x
  3. Step 3: Cross multiply
    2,685.80x = 4,028.74 × 1,652.42
  4. Step 4: Simplify right side
    2,685.80x = 6,657,170.55
  5. Step 5: Solve for x
    x = 6,657,170.55/2,685.80
  6. Step 6: Final answer
    x = 2,478.65

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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.