Home / 2,864.16-4,286.40-1,823.68

Finding the Fourth Proportional to 2,864.16, 4,286.40 and 1,823.68

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Solution

The fourth proportional to 2,864.16, 4,286.40 and 1,823.68 is: 2,729.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.16 : 4,286.40 = 1,823.68 : x
  2. Step 2: Convert to fraction form
    2,864.16/4,286.40 = 1,823.68/x
  3. Step 3: Cross multiply
    2,864.16x = 4,286.40 × 1,823.68
  4. Step 4: Simplify right side
    2,864.16x = 7,817,021.95
  5. Step 5: Solve for x
    x = 7,817,021.95/2,864.16
  6. Step 6: Final answer
    x = 2,729.25

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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.