Home / 3,916.06-5,404.09-2,123.49

Finding the Fourth Proportional to 3,916.06, 5,404.09 and 2,123.49

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Solution

The fourth proportional to 3,916.06, 5,404.09 and 2,123.49 is: 2,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.06 : 5,404.09 = 2,123.49 : x
  2. Step 2: Convert to fraction form
    3,916.06/5,404.09 = 2,123.49/x
  3. Step 3: Cross multiply
    3,916.06x = 5,404.09 × 2,123.49
  4. Step 4: Simplify right side
    3,916.06x = 11,475,531.07
  5. Step 5: Solve for x
    x = 11,475,531.07/3,916.06
  6. Step 6: Final answer
    x = 2,930.38

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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.