Home / 3,895.84-5,376.28-2,127.34

Finding the Fourth Proportional to 3,895.84, 5,376.28 and 2,127.34

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Solution

The fourth proportional to 3,895.84, 5,376.28 and 2,127.34 is: 2,935.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.84 : 5,376.28 = 2,127.34 : x
  2. Step 2: Convert to fraction form
    3,895.84/5,376.28 = 2,127.34/x
  3. Step 3: Cross multiply
    3,895.84x = 5,376.28 × 2,127.34
  4. Step 4: Simplify right side
    3,895.84x = 11,437,175.50
  5. Step 5: Solve for x
    x = 11,437,175.50/3,895.84
  6. Step 6: Final answer
    x = 2,935.74

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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.