Home / 3,340.62-5,011.78-1,955.12

Finding the Fourth Proportional to 3,340.62, 5,011.78 and 1,955.12

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Solution

The fourth proportional to 3,340.62, 5,011.78 and 1,955.12 is: 2,933.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.62 : 5,011.78 = 1,955.12 : x
  2. Step 2: Convert to fraction form
    3,340.62/5,011.78 = 1,955.12/x
  3. Step 3: Cross multiply
    3,340.62x = 5,011.78 × 1,955.12
  4. Step 4: Simplify right side
    3,340.62x = 9,798,631.31
  5. Step 5: Solve for x
    x = 9,798,631.31/3,340.62
  6. Step 6: Final answer
    x = 2,933.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.