Home / 5,318.28-7,338.93-2,927.78

Finding the Fourth Proportional to 5,318.28, 7,338.93 and 2,927.78

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Solution

The fourth proportional to 5,318.28, 7,338.93 and 2,927.78 is: 4,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.28 : 7,338.93 = 2,927.78 : x
  2. Step 2: Convert to fraction form
    5,318.28/7,338.93 = 2,927.78/x
  3. Step 3: Cross multiply
    5,318.28x = 7,338.93 × 2,927.78
  4. Step 4: Simplify right side
    5,318.28x = 21,486,801.80
  5. Step 5: Solve for x
    x = 21,486,801.80/5,318.28
  6. Step 6: Final answer
    x = 4,040.18

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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.