Home / 3,864.12-5,794.80-1,398.30

Finding the Fourth Proportional to 3,864.12, 5,794.80 and 1,398.30

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Solution

The fourth proportional to 3,864.12, 5,794.80 and 1,398.30 is: 2,096.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.12 : 5,794.80 = 1,398.30 : x
  2. Step 2: Convert to fraction form
    3,864.12/5,794.80 = 1,398.30/x
  3. Step 3: Cross multiply
    3,864.12x = 5,794.80 × 1,398.30
  4. Step 4: Simplify right side
    3,864.12x = 8,102,868.84
  5. Step 5: Solve for x
    x = 8,102,868.84/3,864.12
  6. Step 6: Final answer
    x = 2,096.95

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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.