Home / 4,787.80-7,139.77-4,744.04

Finding the Fourth Proportional to 4,787.80, 7,139.77 and 4,744.04

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Solution

The fourth proportional to 4,787.80, 7,139.77 and 4,744.04 is: 7,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.80 : 7,139.77 = 4,744.04 : x
  2. Step 2: Convert to fraction form
    4,787.80/7,139.77 = 4,744.04/x
  3. Step 3: Cross multiply
    4,787.80x = 7,139.77 × 4,744.04
  4. Step 4: Simplify right side
    4,787.80x = 33,871,354.47
  5. Step 5: Solve for x
    x = 33,871,354.47/4,787.80
  6. Step 6: Final answer
    x = 7,074.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.