Home / 1,249.07-1,870.63-1,205.33

Finding the Fourth Proportional to 1,249.07, 1,870.63 and 1,205.33

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Solution

The fourth proportional to 1,249.07, 1,870.63 and 1,205.33 is: 1,805.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.07 : 1,870.63 = 1,205.33 : x
  2. Step 2: Convert to fraction form
    1,249.07/1,870.63 = 1,205.33/x
  3. Step 3: Cross multiply
    1,249.07x = 1,870.63 × 1,205.33
  4. Step 4: Simplify right side
    1,249.07x = 2,254,726.46
  5. Step 5: Solve for x
    x = 2,254,726.46/1,249.07
  6. Step 6: Final answer
    x = 1,805.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.