Home / 1,901.62-2,624.26-1,115.74

Finding the Fourth Proportional to 1,901.62, 2,624.26 and 1,115.74

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Solution

The fourth proportional to 1,901.62, 2,624.26 and 1,115.74 is: 1,539.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.62 : 2,624.26 = 1,115.74 : x
  2. Step 2: Convert to fraction form
    1,901.62/2,624.26 = 1,115.74/x
  3. Step 3: Cross multiply
    1,901.62x = 2,624.26 × 1,115.74
  4. Step 4: Simplify right side
    1,901.62x = 2,927,991.85
  5. Step 5: Solve for x
    x = 2,927,991.85/1,901.62
  6. Step 6: Final answer
    x = 1,539.74

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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.