Home / 7,140.83-10,715.68-3,443.44

Finding the Fourth Proportional to 7,140.83, 10,715.68 and 3,443.44

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Solution

The fourth proportional to 7,140.83, 10,715.68 and 3,443.44 is: 5,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.83 : 10,715.68 = 3,443.44 : x
  2. Step 2: Convert to fraction form
    7,140.83/10,715.68 = 3,443.44/x
  3. Step 3: Cross multiply
    7,140.83x = 10,715.68 × 3,443.44
  4. Step 4: Simplify right side
    7,140.83x = 36,898,801.14
  5. Step 5: Solve for x
    x = 36,898,801.14/7,140.83
  6. Step 6: Final answer
    x = 5,167.30

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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.