Home / 3,916.72-5,404.26-2,323.90

Finding the Fourth Proportional to 3,916.72, 5,404.26 and 2,323.90

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Solution

The fourth proportional to 3,916.72, 5,404.26 and 2,323.90 is: 3,206.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.72 : 5,404.26 = 2,323.90 : x
  2. Step 2: Convert to fraction form
    3,916.72/5,404.26 = 2,323.90/x
  3. Step 3: Cross multiply
    3,916.72x = 5,404.26 × 2,323.90
  4. Step 4: Simplify right side
    3,916.72x = 12,558,959.81
  5. Step 5: Solve for x
    x = 12,558,959.81/3,916.72
  6. Step 6: Final answer
    x = 3,206.50

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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.