Home / 1,842.19-2,763.27-867.76

Finding the Fourth Proportional to 1,842.19, 2,763.27 and 867.76

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Solution

The fourth proportional to 1,842.19, 2,763.27 and 867.76 is: 1,301.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.19 : 2,763.27 = 867.76 : x
  2. Step 2: Convert to fraction form
    1,842.19/2,763.27 = 867.76/x
  3. Step 3: Cross multiply
    1,842.19x = 2,763.27 × 867.76
  4. Step 4: Simplify right side
    1,842.19x = 2,397,855.18
  5. Step 5: Solve for x
    x = 2,397,855.18/1,842.19
  6. Step 6: Final answer
    x = 1,301.63

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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.