Home / 3,893.88-5,373.40-2,125.50

Finding the Fourth Proportional to 3,893.88, 5,373.40 and 2,125.50

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Solution

The fourth proportional to 3,893.88, 5,373.40 and 2,125.50 is: 2,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.88 : 5,373.40 = 2,125.50 : x
  2. Step 2: Convert to fraction form
    3,893.88/5,373.40 = 2,125.50/x
  3. Step 3: Cross multiply
    3,893.88x = 5,373.40 × 2,125.50
  4. Step 4: Simplify right side
    3,893.88x = 11,421,136.24
  5. Step 5: Solve for x
    x = 11,421,136.24/3,893.88
  6. Step 6: Final answer
    x = 2,933.10

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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.