Home / 3,538.76-4,885.11-2,795.78

Finding the Fourth Proportional to 3,538.76, 4,885.11 and 2,795.78

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Solution

The fourth proportional to 3,538.76, 4,885.11 and 2,795.78 is: 3,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.76 : 4,885.11 = 2,795.78 : x
  2. Step 2: Convert to fraction form
    3,538.76/4,885.11 = 2,795.78/x
  3. Step 3: Cross multiply
    3,538.76x = 4,885.11 × 2,795.78
  4. Step 4: Simplify right side
    3,538.76x = 13,657,705.05
  5. Step 5: Solve for x
    x = 13,657,705.05/3,538.76
  6. Step 6: Final answer
    x = 3,859.47

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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.