Home / 3,360.80-4,637.64-1,868.62

Finding the Fourth Proportional to 3,360.80, 4,637.64 and 1,868.62

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Solution

The fourth proportional to 3,360.80, 4,637.64 and 1,868.62 is: 2,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.80 : 4,637.64 = 1,868.62 : x
  2. Step 2: Convert to fraction form
    3,360.80/4,637.64 = 1,868.62/x
  3. Step 3: Cross multiply
    3,360.80x = 4,637.64 × 1,868.62
  4. Step 4: Simplify right side
    3,360.80x = 8,665,989.11
  5. Step 5: Solve for x
    x = 8,665,989.11/3,360.80
  6. Step 6: Final answer
    x = 2,578.55

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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.