Home / 3,251.20-4,868.70-2,603.20

Finding the Fourth Proportional to 3,251.20, 4,868.70 and 2,603.20

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Solution

The fourth proportional to 3,251.20, 4,868.70 and 2,603.20 is: 3,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.20 : 4,868.70 = 2,603.20 : x
  2. Step 2: Convert to fraction form
    3,251.20/4,868.70 = 2,603.20/x
  3. Step 3: Cross multiply
    3,251.20x = 4,868.70 × 2,603.20
  4. Step 4: Simplify right side
    3,251.20x = 12,674,199.84
  5. Step 5: Solve for x
    x = 12,674,199.84/3,251.20
  6. Step 6: Final answer
    x = 3,898.31

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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.