Home / 10,582.36-15,875.16-2,791.78

Finding the Fourth Proportional to 10,582.36, 15,875.16 and 2,791.78

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Solution

The fourth proportional to 10,582.36, 15,875.16 and 2,791.78 is: 4,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,582.36 : 15,875.16 = 2,791.78 : x
  2. Step 2: Convert to fraction form
    10,582.36/15,875.16 = 2,791.78/x
  3. Step 3: Cross multiply
    10,582.36x = 15,875.16 × 2,791.78
  4. Step 4: Simplify right side
    10,582.36x = 44,319,954.18
  5. Step 5: Solve for x
    x = 44,319,954.18/10,582.36
  6. Step 6: Final answer
    x = 4,188.10

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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.