Home / 3,508.65-5,262.67-1,428.87

Finding the Fourth Proportional to 3,508.65, 5,262.67 and 1,428.87

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Solution

The fourth proportional to 3,508.65, 5,262.67 and 1,428.87 is: 2,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.65 : 5,262.67 = 1,428.87 : x
  2. Step 2: Convert to fraction form
    3,508.65/5,262.67 = 1,428.87/x
  3. Step 3: Cross multiply
    3,508.65x = 5,262.67 × 1,428.87
  4. Step 4: Simplify right side
    3,508.65x = 7,519,692.80
  5. Step 5: Solve for x
    x = 7,519,692.80/3,508.65
  6. Step 6: Final answer
    x = 2,143.19

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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.