Home / 1,377.24-2,065.23-822.20

Finding the Fourth Proportional to 1,377.24, 2,065.23 and 822.20

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Solution

The fourth proportional to 1,377.24, 2,065.23 and 822.20 is: 1,232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.24 : 2,065.23 = 822.20 : x
  2. Step 2: Convert to fraction form
    1,377.24/2,065.23 = 822.20/x
  3. Step 3: Cross multiply
    1,377.24x = 2,065.23 × 822.20
  4. Step 4: Simplify right side
    1,377.24x = 1,698,032.11
  5. Step 5: Solve for x
    x = 1,698,032.11/1,377.24
  6. Step 6: Final answer
    x = 1,232.92

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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.