Home / 3,013.28-4,158.39-1,687.08

Finding the Fourth Proportional to 3,013.28, 4,158.39 and 1,687.08

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Solution

The fourth proportional to 3,013.28, 4,158.39 and 1,687.08 is: 2,328.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.28 : 4,158.39 = 1,687.08 : x
  2. Step 2: Convert to fraction form
    3,013.28/4,158.39 = 1,687.08/x
  3. Step 3: Cross multiply
    3,013.28x = 4,158.39 × 1,687.08
  4. Step 4: Simplify right side
    3,013.28x = 7,015,536.60
  5. Step 5: Solve for x
    x = 7,015,536.60/3,013.28
  6. Step 6: Final answer
    x = 2,328.21

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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.