Home / 3,885.84-5,366.40-2,560.56

Finding the Fourth Proportional to 3,885.84, 5,366.40 and 2,560.56

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Solution

The fourth proportional to 3,885.84, 5,366.40 and 2,560.56 is: 3,536.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.84 : 5,366.40 = 2,560.56 : x
  2. Step 2: Convert to fraction form
    3,885.84/5,366.40 = 2,560.56/x
  3. Step 3: Cross multiply
    3,885.84x = 5,366.40 × 2,560.56
  4. Step 4: Simplify right side
    3,885.84x = 13,740,989.18
  5. Step 5: Solve for x
    x = 13,740,989.18/3,885.84
  6. Step 6: Final answer
    x = 3,536.17

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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.