Home / 3,120.30-4,306.12-1,794.28

Finding the Fourth Proportional to 3,120.30, 4,306.12 and 1,794.28

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Solution

The fourth proportional to 3,120.30, 4,306.12 and 1,794.28 is: 2,476.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.30 : 4,306.12 = 1,794.28 : x
  2. Step 2: Convert to fraction form
    3,120.30/4,306.12 = 1,794.28/x
  3. Step 3: Cross multiply
    3,120.30x = 4,306.12 × 1,794.28
  4. Step 4: Simplify right side
    3,120.30x = 7,726,384.99
  5. Step 5: Solve for x
    x = 7,726,384.99/3,120.30
  6. Step 6: Final answer
    x = 2,476.17

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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.