Home / 5,618.77-8,428.25-2,842.09

Finding the Fourth Proportional to 5,618.77, 8,428.25 and 2,842.09

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Solution

The fourth proportional to 5,618.77, 8,428.25 and 2,842.09 is: 4,263.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.77 : 8,428.25 = 2,842.09 : x
  2. Step 2: Convert to fraction form
    5,618.77/8,428.25 = 2,842.09/x
  3. Step 3: Cross multiply
    5,618.77x = 8,428.25 × 2,842.09
  4. Step 4: Simplify right side
    5,618.77x = 23,953,831.08
  5. Step 5: Solve for x
    x = 23,953,831.08/5,618.77
  6. Step 6: Final answer
    x = 4,263.18

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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.