Home / 2,187.09-3,017.97-1,525.37

Finding the Fourth Proportional to 2,187.09, 3,017.97 and 1,525.37

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Solution

The fourth proportional to 2,187.09, 3,017.97 and 1,525.37 is: 2,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.09 : 3,017.97 = 1,525.37 : x
  2. Step 2: Convert to fraction form
    2,187.09/3,017.97 = 1,525.37/x
  3. Step 3: Cross multiply
    2,187.09x = 3,017.97 × 1,525.37
  4. Step 4: Simplify right side
    2,187.09x = 4,603,505.81
  5. Step 5: Solve for x
    x = 4,603,505.81/2,187.09
  6. Step 6: Final answer
    x = 2,104.85

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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.