Home / 2,197.10-3,030.46-2,124.78

Finding the Fourth Proportional to 2,197.10, 3,030.46 and 2,124.78

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Solution

The fourth proportional to 2,197.10, 3,030.46 and 2,124.78 is: 2,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.10 : 3,030.46 = 2,124.78 : x
  2. Step 2: Convert to fraction form
    2,197.10/3,030.46 = 2,124.78/x
  3. Step 3: Cross multiply
    2,197.10x = 3,030.46 × 2,124.78
  4. Step 4: Simplify right side
    2,197.10x = 6,439,060.80
  5. Step 5: Solve for x
    x = 6,439,060.80/2,197.10
  6. Step 6: Final answer
    x = 2,930.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.