Home / 2,445.80-3,669.10-801.90

Finding the Fourth Proportional to 2,445.80, 3,669.10 and 801.90

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Solution

The fourth proportional to 2,445.80, 3,669.10 and 801.90 is: 1,202.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.80 : 3,669.10 = 801.90 : x
  2. Step 2: Convert to fraction form
    2,445.80/3,669.10 = 801.90/x
  3. Step 3: Cross multiply
    2,445.80x = 3,669.10 × 801.90
  4. Step 4: Simplify right side
    2,445.80x = 2,942,249.29
  5. Step 5: Solve for x
    x = 2,942,249.29/2,445.80
  6. Step 6: Final answer
    x = 1,202.98

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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.