Home / 2,552.21-3,521.83-1,557.80

Finding the Fourth Proportional to 2,552.21, 3,521.83 and 1,557.80

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Solution

The fourth proportional to 2,552.21, 3,521.83 and 1,557.80 is: 2,149.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,552.21 : 3,521.83 = 1,557.80 : x
  2. Step 2: Convert to fraction form
    2,552.21/3,521.83 = 1,557.80/x
  3. Step 3: Cross multiply
    2,552.21x = 3,521.83 × 1,557.80
  4. Step 4: Simplify right side
    2,552.21x = 5,486,298.99
  5. Step 5: Solve for x
    x = 5,486,298.99/2,552.21
  6. Step 6: Final answer
    x = 2,149.63

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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.