Home / 7,103.12-10,658.96-2,943.20

Finding the Fourth Proportional to 7,103.12, 10,658.96 and 2,943.20

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Solution

The fourth proportional to 7,103.12, 10,658.96 and 2,943.20 is: 4,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.12 : 10,658.96 = 2,943.20 : x
  2. Step 2: Convert to fraction form
    7,103.12/10,658.96 = 2,943.20/x
  3. Step 3: Cross multiply
    7,103.12x = 10,658.96 × 2,943.20
  4. Step 4: Simplify right side
    7,103.12x = 31,371,451.07
  5. Step 5: Solve for x
    x = 31,371,451.07/7,103.12
  6. Step 6: Final answer
    x = 4,416.57

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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.