Home / 7,125-10,688.36-2,967.83

Finding the Fourth Proportional to 7,125, 10,688.36 and 2,967.83

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Solution

The fourth proportional to 7,125, 10,688.36 and 2,967.83 is: 4,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125 : 10,688.36 = 2,967.83 : x
  2. Step 2: Convert to fraction form
    7,125/10,688.36 = 2,967.83/x
  3. Step 3: Cross multiply
    7,125x = 10,688.36 × 2,967.83
  4. Step 4: Simplify right side
    7,125x = 31,721,167.18
  5. Step 5: Solve for x
    x = 31,721,167.18/7,125
  6. Step 6: Final answer
    x = 4,452.09

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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.