Home / 2,603.29-3,905.88-1,142.86

Finding the Fourth Proportional to 2,603.29, 3,905.88 and 1,142.86

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Solution

The fourth proportional to 2,603.29, 3,905.88 and 1,142.86 is: 1,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.29 : 3,905.88 = 1,142.86 : x
  2. Step 2: Convert to fraction form
    2,603.29/3,905.88 = 1,142.86/x
  3. Step 3: Cross multiply
    2,603.29x = 3,905.88 × 1,142.86
  4. Step 4: Simplify right side
    2,603.29x = 4,463,874.02
  5. Step 5: Solve for x
    x = 4,463,874.02/2,603.29
  6. Step 6: Final answer
    x = 1,714.70

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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.