Home / 3,555.44-4,908.84-2,812.40

Finding the Fourth Proportional to 3,555.44, 4,908.84 and 2,812.40

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Solution

The fourth proportional to 3,555.44, 4,908.84 and 2,812.40 is: 3,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.44 : 4,908.84 = 2,812.40 : x
  2. Step 2: Convert to fraction form
    3,555.44/4,908.84 = 2,812.40/x
  3. Step 3: Cross multiply
    3,555.44x = 4,908.84 × 2,812.40
  4. Step 4: Simplify right side
    3,555.44x = 13,805,621.62
  5. Step 5: Solve for x
    x = 13,805,621.62/3,555.44
  6. Step 6: Final answer
    x = 3,882.96

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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.