Home / 1,577.30-2,365.60-699.80

Finding the Fourth Proportional to 1,577.30, 2,365.60 and 699.80

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Solution

The fourth proportional to 1,577.30, 2,365.60 and 699.80 is: 1,049.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.30 : 2,365.60 = 699.80 : x
  2. Step 2: Convert to fraction form
    1,577.30/2,365.60 = 699.80/x
  3. Step 3: Cross multiply
    1,577.30x = 2,365.60 × 699.80
  4. Step 4: Simplify right side
    1,577.30x = 1,655,446.88
  5. Step 5: Solve for x
    x = 1,655,446.88/1,577.30
  6. Step 6: Final answer
    x = 1,049.54

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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.