Home / 2,603.46-3,899-1,431.74

Finding the Fourth Proportional to 2,603.46, 3,899 and 1,431.74

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Solution

The fourth proportional to 2,603.46, 3,899 and 1,431.74 is: 2,144.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.46 : 3,899 = 1,431.74 : x
  2. Step 2: Convert to fraction form
    2,603.46/3,899 = 1,431.74/x
  3. Step 3: Cross multiply
    2,603.46x = 3,899 × 1,431.74
  4. Step 4: Simplify right side
    2,603.46x = 5,582,354.26
  5. Step 5: Solve for x
    x = 5,582,354.26/2,603.46
  6. Step 6: Final answer
    x = 2,144.21

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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.