Home / 5,286.39-7,927.54-1,587.75

Finding the Fourth Proportional to 5,286.39, 7,927.54 and 1,587.75

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Solution

The fourth proportional to 5,286.39, 7,927.54 and 1,587.75 is: 2,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.39 : 7,927.54 = 1,587.75 : x
  2. Step 2: Convert to fraction form
    5,286.39/7,927.54 = 1,587.75/x
  3. Step 3: Cross multiply
    5,286.39x = 7,927.54 × 1,587.75
  4. Step 4: Simplify right side
    5,286.39x = 12,586,951.64
  5. Step 5: Solve for x
    x = 12,586,951.64/5,286.39
  6. Step 6: Final answer
    x = 2,381.01

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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.