Home / 5,286.25-7,929.07-1,588.40

Finding the Fourth Proportional to 5,286.25, 7,929.07 and 1,588.40

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Solution

The fourth proportional to 5,286.25, 7,929.07 and 1,588.40 is: 2,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.25 : 7,929.07 = 1,588.40 : x
  2. Step 2: Convert to fraction form
    5,286.25/7,929.07 = 1,588.40/x
  3. Step 3: Cross multiply
    5,286.25x = 7,929.07 × 1,588.40
  4. Step 4: Simplify right side
    5,286.25x = 12,594,534.79
  5. Step 5: Solve for x
    x = 12,594,534.79/5,286.25
  6. Step 6: Final answer
    x = 2,382.51

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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.