Home / 1,521.15-2,099.17-822.52

Finding the Fourth Proportional to 1,521.15, 2,099.17 and 822.52

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Solution

The fourth proportional to 1,521.15, 2,099.17 and 822.52 is: 1,135.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.15 : 2,099.17 = 822.52 : x
  2. Step 2: Convert to fraction form
    1,521.15/2,099.17 = 822.52/x
  3. Step 3: Cross multiply
    1,521.15x = 2,099.17 × 822.52
  4. Step 4: Simplify right side
    1,521.15x = 1,726,612.96
  5. Step 5: Solve for x
    x = 1,726,612.96/1,521.15
  6. Step 6: Final answer
    x = 1,135.07

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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.