Home / 3,426.39-5,139.40-1,876.18

Finding the Fourth Proportional to 3,426.39, 5,139.40 and 1,876.18

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Solution

The fourth proportional to 3,426.39, 5,139.40 and 1,876.18 is: 2,814.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.39 : 5,139.40 = 1,876.18 : x
  2. Step 2: Convert to fraction form
    3,426.39/5,139.40 = 1,876.18/x
  3. Step 3: Cross multiply
    3,426.39x = 5,139.40 × 1,876.18
  4. Step 4: Simplify right side
    3,426.39x = 9,642,439.49
  5. Step 5: Solve for x
    x = 9,642,439.49/3,426.39
  6. Step 6: Final answer
    x = 2,814.17

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1.5x scale

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.