Home / 2,603.76-3,905.33-1,043.70

Finding the Fourth Proportional to 2,603.76, 3,905.33 and 1,043.70

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Solution

The fourth proportional to 2,603.76, 3,905.33 and 1,043.70 is: 1,565.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.76 : 3,905.33 = 1,043.70 : x
  2. Step 2: Convert to fraction form
    2,603.76/3,905.33 = 1,043.70/x
  3. Step 3: Cross multiply
    2,603.76x = 3,905.33 × 1,043.70
  4. Step 4: Simplify right side
    2,603.76x = 4,076,000.90
  5. Step 5: Solve for x
    x = 4,076,000.90/2,603.76
  6. Step 6: Final answer
    x = 1,565.43

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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.