Home / 3,389.40-5,084.04-1,908.60

Finding the Fourth Proportional to 3,389.40, 5,084.04 and 1,908.60

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Solution

The fourth proportional to 3,389.40, 5,084.04 and 1,908.60 is: 2,862.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.40 : 5,084.04 = 1,908.60 : x
  2. Step 2: Convert to fraction form
    3,389.40/5,084.04 = 1,908.60/x
  3. Step 3: Cross multiply
    3,389.40x = 5,084.04 × 1,908.60
  4. Step 4: Simplify right side
    3,389.40x = 9,703,398.74
  5. Step 5: Solve for x
    x = 9,703,398.74/3,389.40
  6. Step 6: Final answer
    x = 2,862.87

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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.