Home / 2,605.24-3,908.76-1,145.41

Finding the Fourth Proportional to 2,605.24, 3,908.76 and 1,145.41

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Solution

The fourth proportional to 2,605.24, 3,908.76 and 1,145.41 is: 1,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.24 : 3,908.76 = 1,145.41 : x
  2. Step 2: Convert to fraction form
    2,605.24/3,908.76 = 1,145.41/x
  3. Step 3: Cross multiply
    2,605.24x = 3,908.76 × 1,145.41
  4. Step 4: Simplify right side
    2,605.24x = 4,477,132.79
  5. Step 5: Solve for x
    x = 4,477,132.79/2,605.24
  6. Step 6: Final answer
    x = 1,718.51

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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.