Home / 3,712.87-5,569.28-1,521.60

Finding the Fourth Proportional to 3,712.87, 5,569.28 and 1,521.60

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Solution

The fourth proportional to 3,712.87, 5,569.28 and 1,521.60 is: 2,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.87 : 5,569.28 = 1,521.60 : x
  2. Step 2: Convert to fraction form
    3,712.87/5,569.28 = 1,521.60/x
  3. Step 3: Cross multiply
    3,712.87x = 5,569.28 × 1,521.60
  4. Step 4: Simplify right side
    3,712.87x = 8,474,216.45
  5. Step 5: Solve for x
    x = 8,474,216.45/3,712.87
  6. Step 6: Final answer
    x = 2,282.39

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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.