Home / 2,211.30-3,332.95-2,112.48

Finding the Fourth Proportional to 2,211.30, 3,332.95 and 2,112.48

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Solution

The fourth proportional to 2,211.30, 3,332.95 and 2,112.48 is: 3,184.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.30 : 3,332.95 = 2,112.48 : x
  2. Step 2: Convert to fraction form
    2,211.30/3,332.95 = 2,112.48/x
  3. Step 3: Cross multiply
    2,211.30x = 3,332.95 × 2,112.48
  4. Step 4: Simplify right side
    2,211.30x = 7,040,784.93
  5. Step 5: Solve for x
    x = 7,040,784.93/2,211.30
  6. Step 6: Final answer
    x = 3,184.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.