Home / 3,865.77-5,799.60-1,787.22

Finding the Fourth Proportional to 3,865.77, 5,799.60 and 1,787.22

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Solution

The fourth proportional to 3,865.77, 5,799.60 and 1,787.22 is: 2,681.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.77 : 5,799.60 = 1,787.22 : x
  2. Step 2: Convert to fraction form
    3,865.77/5,799.60 = 1,787.22/x
  3. Step 3: Cross multiply
    3,865.77x = 5,799.60 × 1,787.22
  4. Step 4: Simplify right side
    3,865.77x = 10,365,132.11
  5. Step 5: Solve for x
    x = 10,365,132.11/3,865.77
  6. Step 6: Final answer
    x = 2,681.26

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1.5x scale

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.