Home / 3,916.35-5,402.97-2,658.69

Finding the Fourth Proportional to 3,916.35, 5,402.97 and 2,658.69

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Solution

The fourth proportional to 3,916.35, 5,402.97 and 2,658.69 is: 3,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.35 : 5,402.97 = 2,658.69 : x
  2. Step 2: Convert to fraction form
    3,916.35/5,402.97 = 2,658.69/x
  3. Step 3: Cross multiply
    3,916.35x = 5,402.97 × 2,658.69
  4. Step 4: Simplify right side
    3,916.35x = 14,364,822.31
  5. Step 5: Solve for x
    x = 14,364,822.31/3,916.35
  6. Step 6: Final answer
    x = 3,667.91

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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.