Home / 1,286.23-1,927.60-591.25

Finding the Fourth Proportional to 1,286.23, 1,927.60 and 591.25

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Solution

The fourth proportional to 1,286.23, 1,927.60 and 591.25 is: 886.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.23 : 1,927.60 = 591.25 : x
  2. Step 2: Convert to fraction form
    1,286.23/1,927.60 = 591.25/x
  3. Step 3: Cross multiply
    1,286.23x = 1,927.60 × 591.25
  4. Step 4: Simplify right side
    1,286.23x = 1,139,690.82
  5. Step 5: Solve for x
    x = 1,139,690.82/1,286.23
  6. Step 6: Final answer
    x = 886.07

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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.