Home / 1,631.32-2,249.10-1,040.83

Finding the Fourth Proportional to 1,631.32, 2,249.10 and 1,040.83

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Solution

The fourth proportional to 1,631.32, 2,249.10 and 1,040.83 is: 1,434.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.32 : 2,249.10 = 1,040.83 : x
  2. Step 2: Convert to fraction form
    1,631.32/2,249.10 = 1,040.83/x
  3. Step 3: Cross multiply
    1,631.32x = 2,249.10 × 1,040.83
  4. Step 4: Simplify right side
    1,631.32x = 2,340,930.75
  5. Step 5: Solve for x
    x = 2,340,930.75/1,631.32
  6. Step 6: Final answer
    x = 1,434.99

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1.5x scale

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.