Home / 7,875.48-11,817.32-3,491.91

Finding the Fourth Proportional to 7,875.48, 11,817.32 and 3,491.91

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Solution

The fourth proportional to 7,875.48, 11,817.32 and 3,491.91 is: 5,239.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.48 : 11,817.32 = 3,491.91 : x
  2. Step 2: Convert to fraction form
    7,875.48/11,817.32 = 3,491.91/x
  3. Step 3: Cross multiply
    7,875.48x = 11,817.32 × 3,491.91
  4. Step 4: Simplify right side
    7,875.48x = 41,265,000.42
  5. Step 5: Solve for x
    x = 41,265,000.42/7,875.48
  6. Step 6: Final answer
    x = 5,239.68

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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.