Home / 2,619.63-3,615.07-1,557.92

Finding the Fourth Proportional to 2,619.63, 3,615.07 and 1,557.92

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Solution

The fourth proportional to 2,619.63, 3,615.07 and 1,557.92 is: 2,149.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.63 : 3,615.07 = 1,557.92 : x
  2. Step 2: Convert to fraction form
    2,619.63/3,615.07 = 1,557.92/x
  3. Step 3: Cross multiply
    2,619.63x = 3,615.07 × 1,557.92
  4. Step 4: Simplify right side
    2,619.63x = 5,631,989.85
  5. Step 5: Solve for x
    x = 5,631,989.85/2,619.63
  6. Step 6: Final answer
    x = 2,149.92

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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.