Home / 1,631.89-2,249.81-1,107.01

Finding the Fourth Proportional to 1,631.89, 2,249.81 and 1,107.01

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Solution

The fourth proportional to 1,631.89, 2,249.81 and 1,107.01 is: 1,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.89 : 2,249.81 = 1,107.01 : x
  2. Step 2: Convert to fraction form
    1,631.89/2,249.81 = 1,107.01/x
  3. Step 3: Cross multiply
    1,631.89x = 2,249.81 × 1,107.01
  4. Step 4: Simplify right side
    1,631.89x = 2,490,556.63
  5. Step 5: Solve for x
    x = 2,490,556.63/1,631.89
  6. Step 6: Final answer
    x = 1,526.18

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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.