Home / 1,901.56-2,624.46-1,115.66

Finding the Fourth Proportional to 1,901.56, 2,624.46 and 1,115.66

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Solution

The fourth proportional to 1,901.56, 2,624.46 and 1,115.66 is: 1,539.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.56 : 2,624.46 = 1,115.66 : x
  2. Step 2: Convert to fraction form
    1,901.56/2,624.46 = 1,115.66/x
  3. Step 3: Cross multiply
    1,901.56x = 2,624.46 × 1,115.66
  4. Step 4: Simplify right side
    1,901.56x = 2,928,005.04
  5. Step 5: Solve for x
    x = 2,928,005.04/1,901.56
  6. Step 6: Final answer
    x = 1,539.79

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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.