Home / 5,239.71-7,842.29-2,864.16

Finding the Fourth Proportional to 5,239.71, 7,842.29 and 2,864.16

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Solution

The fourth proportional to 5,239.71, 7,842.29 and 2,864.16 is: 4,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.71 : 7,842.29 = 2,864.16 : x
  2. Step 2: Convert to fraction form
    5,239.71/7,842.29 = 2,864.16/x
  3. Step 3: Cross multiply
    5,239.71x = 7,842.29 × 2,864.16
  4. Step 4: Simplify right side
    5,239.71x = 22,461,583.17
  5. Step 5: Solve for x
    x = 22,461,583.17/5,239.71
  6. Step 6: Final answer
    x = 4,286.80

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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.