Home / 3,893.90-5,364.50-2,712.92

Finding the Fourth Proportional to 3,893.90, 5,364.50 and 2,712.92

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Solution

The fourth proportional to 3,893.90, 5,364.50 and 2,712.92 is: 3,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.90 : 5,364.50 = 2,712.92 : x
  2. Step 2: Convert to fraction form
    3,893.90/5,364.50 = 2,712.92/x
  3. Step 3: Cross multiply
    3,893.90x = 5,364.50 × 2,712.92
  4. Step 4: Simplify right side
    3,893.90x = 14,553,459.34
  5. Step 5: Solve for x
    x = 14,553,459.34/3,893.90
  6. Step 6: Final answer
    x = 3,737.50

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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.