Home / 3,013.36-4,158.61-1,687.05

Finding the Fourth Proportional to 3,013.36, 4,158.61 and 1,687.05

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Solution

The fourth proportional to 3,013.36, 4,158.61 and 1,687.05 is: 2,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.36 : 4,158.61 = 1,687.05 : x
  2. Step 2: Convert to fraction form
    3,013.36/4,158.61 = 1,687.05/x
  3. Step 3: Cross multiply
    3,013.36x = 4,158.61 × 1,687.05
  4. Step 4: Simplify right side
    3,013.36x = 7,015,778.78
  5. Step 5: Solve for x
    x = 7,015,778.78/3,013.36
  6. Step 6: Final answer
    x = 2,328.23

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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.