Home / 2,130.68-3,197.27-960.75

Finding the Fourth Proportional to 2,130.68, 3,197.27 and 960.75

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Solution

The fourth proportional to 2,130.68, 3,197.27 and 960.75 is: 1,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.68 : 3,197.27 = 960.75 : x
  2. Step 2: Convert to fraction form
    2,130.68/3,197.27 = 960.75/x
  3. Step 3: Cross multiply
    2,130.68x = 3,197.27 × 960.75
  4. Step 4: Simplify right side
    2,130.68x = 3,071,779.55
  5. Step 5: Solve for x
    x = 3,071,779.55/2,130.68
  6. Step 6: Final answer
    x = 1,441.69

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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.