Home / 2,012.28-3,019.08-985.56

Finding the Fourth Proportional to 2,012.28, 3,019.08 and 985.56

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Solution

The fourth proportional to 2,012.28, 3,019.08 and 985.56 is: 1,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.28 : 3,019.08 = 985.56 : x
  2. Step 2: Convert to fraction form
    2,012.28/3,019.08 = 985.56/x
  3. Step 3: Cross multiply
    2,012.28x = 3,019.08 × 985.56
  4. Step 4: Simplify right side
    2,012.28x = 2,975,484.48
  5. Step 5: Solve for x
    x = 2,975,484.48/2,012.28
  6. Step 6: Final answer
    x = 1,478.66

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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.