Home / 5,265.92-7,266.86-2,875.78

Finding the Fourth Proportional to 5,265.92, 7,266.86 and 2,875.78

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Solution

The fourth proportional to 5,265.92, 7,266.86 and 2,875.78 is: 3,968.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265.92 : 7,266.86 = 2,875.78 : x
  2. Step 2: Convert to fraction form
    5,265.92/7,266.86 = 2,875.78/x
  3. Step 3: Cross multiply
    5,265.92x = 7,266.86 × 2,875.78
  4. Step 4: Simplify right side
    5,265.92x = 20,897,890.65
  5. Step 5: Solve for x
    x = 20,897,890.65/5,265.92
  6. Step 6: Final answer
    x = 3,968.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.