Home / 2,197.64-3,292.80-1,330.16

Finding the Fourth Proportional to 2,197.64, 3,292.80 and 1,330.16

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Solution

The fourth proportional to 2,197.64, 3,292.80 and 1,330.16 is: 1,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.64 : 3,292.80 = 1,330.16 : x
  2. Step 2: Convert to fraction form
    2,197.64/3,292.80 = 1,330.16/x
  3. Step 3: Cross multiply
    2,197.64x = 3,292.80 × 1,330.16
  4. Step 4: Simplify right side
    2,197.64x = 4,379,950.85
  5. Step 5: Solve for x
    x = 4,379,950.85/2,197.64
  6. Step 6: Final answer
    x = 1,993.02

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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.