Home / 1,286.24-1,927.46-1,056.74

Finding the Fourth Proportional to 1,286.24, 1,927.46 and 1,056.74

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Solution

The fourth proportional to 1,286.24, 1,927.46 and 1,056.74 is: 1,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.24 : 1,927.46 = 1,056.74 : x
  2. Step 2: Convert to fraction form
    1,286.24/1,927.46 = 1,056.74/x
  3. Step 3: Cross multiply
    1,286.24x = 1,927.46 × 1,056.74
  4. Step 4: Simplify right side
    1,286.24x = 2,036,824.08
  5. Step 5: Solve for x
    x = 2,036,824.08/1,286.24
  6. Step 6: Final answer
    x = 1,583.55

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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.