Home / 1,631.65-2,252.85-1,003.02

Finding the Fourth Proportional to 1,631.65, 2,252.85 and 1,003.02

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Solution

The fourth proportional to 1,631.65, 2,252.85 and 1,003.02 is: 1,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.65 : 2,252.85 = 1,003.02 : x
  2. Step 2: Convert to fraction form
    1,631.65/2,252.85 = 1,003.02/x
  3. Step 3: Cross multiply
    1,631.65x = 2,252.85 × 1,003.02
  4. Step 4: Simplify right side
    1,631.65x = 2,259,651.96
  5. Step 5: Solve for x
    x = 2,259,651.96/1,631.65
  6. Step 6: Final answer
    x = 1,384.89

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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.