Home / 2,772.56-4,157.66-923.18

Finding the Fourth Proportional to 2,772.56, 4,157.66 and 923.18

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Solution

The fourth proportional to 2,772.56, 4,157.66 and 923.18 is: 1,384.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.56 : 4,157.66 = 923.18 : x
  2. Step 2: Convert to fraction form
    2,772.56/4,157.66 = 923.18/x
  3. Step 3: Cross multiply
    2,772.56x = 4,157.66 × 923.18
  4. Step 4: Simplify right side
    2,772.56x = 3,838,268.56
  5. Step 5: Solve for x
    x = 3,838,268.56/2,772.56
  6. Step 6: Final answer
    x = 1,384.38

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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.