Home / 2,160.11-3,237.12-860.06

Finding the Fourth Proportional to 2,160.11, 3,237.12 and 860.06

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Solution

The fourth proportional to 2,160.11, 3,237.12 and 860.06 is: 1,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.11 : 3,237.12 = 860.06 : x
  2. Step 2: Convert to fraction form
    2,160.11/3,237.12 = 860.06/x
  3. Step 3: Cross multiply
    2,160.11x = 3,237.12 × 860.06
  4. Step 4: Simplify right side
    2,160.11x = 2,784,125.52
  5. Step 5: Solve for x
    x = 2,784,125.52/2,160.11
  6. Step 6: Final answer
    x = 1,288.88

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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.