Home / 3,895.76-5,376.15-2,127.39

Finding the Fourth Proportional to 3,895.76, 5,376.15 and 2,127.39

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Solution

The fourth proportional to 3,895.76, 5,376.15 and 2,127.39 is: 2,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.76 : 5,376.15 = 2,127.39 : x
  2. Step 2: Convert to fraction form
    3,895.76/5,376.15 = 2,127.39/x
  3. Step 3: Cross multiply
    3,895.76x = 5,376.15 × 2,127.39
  4. Step 4: Simplify right side
    3,895.76x = 11,437,167.75
  5. Step 5: Solve for x
    x = 11,437,167.75/3,895.76
  6. Step 6: Final answer
    x = 2,935.80

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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.