Home / 1,927.39-2,659.79-1,043.20

Finding the Fourth Proportional to 1,927.39, 2,659.79 and 1,043.20

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Solution

The fourth proportional to 1,927.39, 2,659.79 and 1,043.20 is: 1,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.39 : 2,659.79 = 1,043.20 : x
  2. Step 2: Convert to fraction form
    1,927.39/2,659.79 = 1,043.20/x
  3. Step 3: Cross multiply
    1,927.39x = 2,659.79 × 1,043.20
  4. Step 4: Simplify right side
    1,927.39x = 2,774,692.93
  5. Step 5: Solve for x
    x = 2,774,692.93/1,927.39
  6. Step 6: Final answer
    x = 1,439.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.