Home / 2,603.24-3,905.76-1,143.41

Finding the Fourth Proportional to 2,603.24, 3,905.76 and 1,143.41

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Solution

The fourth proportional to 2,603.24, 3,905.76 and 1,143.41 is: 1,715.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.24 : 3,905.76 = 1,143.41 : x
  2. Step 2: Convert to fraction form
    2,603.24/3,905.76 = 1,143.41/x
  3. Step 3: Cross multiply
    2,603.24x = 3,905.76 × 1,143.41
  4. Step 4: Simplify right side
    2,603.24x = 4,465,885.04
  5. Step 5: Solve for x
    x = 4,465,885.04/2,603.24
  6. Step 6: Final answer
    x = 1,715.51

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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.