Home / 1,631.06-2,251.23-1,368.62

Finding the Fourth Proportional to 1,631.06, 2,251.23 and 1,368.62

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Solution

The fourth proportional to 1,631.06, 2,251.23 and 1,368.62 is: 1,889.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.06 : 2,251.23 = 1,368.62 : x
  2. Step 2: Convert to fraction form
    1,631.06/2,251.23 = 1,368.62/x
  3. Step 3: Cross multiply
    1,631.06x = 2,251.23 × 1,368.62
  4. Step 4: Simplify right side
    1,631.06x = 3,081,078.40
  5. Step 5: Solve for x
    x = 3,081,078.40/1,631.06
  6. Step 6: Final answer
    x = 1,889.00

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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.