Home / 2,187.02-3,282.26-1,147.34

Finding the Fourth Proportional to 2,187.02, 3,282.26 and 1,147.34

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Solution

The fourth proportional to 2,187.02, 3,282.26 and 1,147.34 is: 1,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.02 : 3,282.26 = 1,147.34 : x
  2. Step 2: Convert to fraction form
    2,187.02/3,282.26 = 1,147.34/x
  3. Step 3: Cross multiply
    2,187.02x = 3,282.26 × 1,147.34
  4. Step 4: Simplify right side
    2,187.02x = 3,765,868.19
  5. Step 5: Solve for x
    x = 3,765,868.19/2,187.02
  6. Step 6: Final answer
    x = 1,721.92

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1.5x scale

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.