Home / 3,013.38-4,158.26-1,687.20

Finding the Fourth Proportional to 3,013.38, 4,158.26 and 1,687.20

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Solution

The fourth proportional to 3,013.38, 4,158.26 and 1,687.20 is: 2,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.38 : 4,158.26 = 1,687.20 : x
  2. Step 2: Convert to fraction form
    3,013.38/4,158.26 = 1,687.20/x
  3. Step 3: Cross multiply
    3,013.38x = 4,158.26 × 1,687.20
  4. Step 4: Simplify right side
    3,013.38x = 7,015,816.27
  5. Step 5: Solve for x
    x = 7,015,816.27/3,013.38
  6. Step 6: Final answer
    x = 2,328.22

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1.5x scale

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.