Home / 2,513.40-3,469.16-2,123.40

Finding the Fourth Proportional to 2,513.40, 3,469.16 and 2,123.40

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Solution

The fourth proportional to 2,513.40, 3,469.16 and 2,123.40 is: 2,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,513.40 : 3,469.16 = 2,123.40 : x
  2. Step 2: Convert to fraction form
    2,513.40/3,469.16 = 2,123.40/x
  3. Step 3: Cross multiply
    2,513.40x = 3,469.16 × 2,123.40
  4. Step 4: Simplify right side
    2,513.40x = 7,366,414.34
  5. Step 5: Solve for x
    x = 7,366,414.34/2,513.40
  6. Step 6: Final answer
    x = 2,930.86

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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.