Home / 2,615.92-3,610.48-1,731.76

Finding the Fourth Proportional to 2,615.92, 3,610.48 and 1,731.76

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Solution

The fourth proportional to 2,615.92, 3,610.48 and 1,731.76 is: 2,390.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.92 : 3,610.48 = 1,731.76 : x
  2. Step 2: Convert to fraction form
    2,615.92/3,610.48 = 1,731.76/x
  3. Step 3: Cross multiply
    2,615.92x = 3,610.48 × 1,731.76
  4. Step 4: Simplify right side
    2,615.92x = 6,252,484.84
  5. Step 5: Solve for x
    x = 6,252,484.84/2,615.92
  6. Step 6: Final answer
    x = 2,390.17

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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.