Home / 3,895.85-5,376.13-2,127.47

Finding the Fourth Proportional to 3,895.85, 5,376.13 and 2,127.47

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Solution

The fourth proportional to 3,895.85, 5,376.13 and 2,127.47 is: 2,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.85 : 5,376.13 = 2,127.47 : x
  2. Step 2: Convert to fraction form
    3,895.85/5,376.13 = 2,127.47/x
  3. Step 3: Cross multiply
    3,895.85x = 5,376.13 × 2,127.47
  4. Step 4: Simplify right side
    3,895.85x = 11,437,523.09
  5. Step 5: Solve for x
    x = 11,437,523.09/3,895.85
  6. Step 6: Final answer
    x = 2,935.82

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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.