Home / 5,286.05-7,294.74-2,928.18

Finding the Fourth Proportional to 5,286.05, 7,294.74 and 2,928.18

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Solution

The fourth proportional to 5,286.05, 7,294.74 and 2,928.18 is: 4,040.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.05 : 7,294.74 = 2,928.18 : x
  2. Step 2: Convert to fraction form
    5,286.05/7,294.74 = 2,928.18/x
  3. Step 3: Cross multiply
    5,286.05x = 7,294.74 × 2,928.18
  4. Step 4: Simplify right side
    5,286.05x = 21,360,311.77
  5. Step 5: Solve for x
    x = 21,360,311.77/5,286.05
  6. Step 6: Final answer
    x = 4,040.89

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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.