Home / 2,620.03-3,615.24-1,557.77

Finding the Fourth Proportional to 2,620.03, 3,615.24 and 1,557.77

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Solution

The fourth proportional to 2,620.03, 3,615.24 and 1,557.77 is: 2,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.03 : 3,615.24 = 1,557.77 : x
  2. Step 2: Convert to fraction form
    2,620.03/3,615.24 = 1,557.77/x
  3. Step 3: Cross multiply
    2,620.03x = 3,615.24 × 1,557.77
  4. Step 4: Simplify right side
    2,620.03x = 5,631,711.75
  5. Step 5: Solve for x
    x = 5,631,711.75/2,620.03
  6. Step 6: Final answer
    x = 2,149.48

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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.