Home / 1,377.18-2,065.14-822.14

Finding the Fourth Proportional to 1,377.18, 2,065.14 and 822.14

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Solution

The fourth proportional to 1,377.18, 2,065.14 and 822.14 is: 1,232.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.18 : 2,065.14 = 822.14 : x
  2. Step 2: Convert to fraction form
    1,377.18/2,065.14 = 822.14/x
  3. Step 3: Cross multiply
    1,377.18x = 2,065.14 × 822.14
  4. Step 4: Simplify right side
    1,377.18x = 1,697,834.20
  5. Step 5: Solve for x
    x = 1,697,834.20/1,377.18
  6. Step 6: Final answer
    x = 1,232.83

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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.