Home / 3,916.58-5,404.84-2,148.12

Finding the Fourth Proportional to 3,916.58, 5,404.84 and 2,148.12

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Solution

The fourth proportional to 3,916.58, 5,404.84 and 2,148.12 is: 2,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.58 : 5,404.84 = 2,148.12 : x
  2. Step 2: Convert to fraction form
    3,916.58/5,404.84 = 2,148.12/x
  3. Step 3: Cross multiply
    3,916.58x = 5,404.84 × 2,148.12
  4. Step 4: Simplify right side
    3,916.58x = 11,610,244.90
  5. Step 5: Solve for x
    x = 11,610,244.90/3,916.58
  6. Step 6: Final answer
    x = 2,964.38

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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.