Home / 5,286.58-7,295.42-2,928.72

Finding the Fourth Proportional to 5,286.58, 7,295.42 and 2,928.72

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Solution

The fourth proportional to 5,286.58, 7,295.42 and 2,928.72 is: 4,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.58 : 7,295.42 = 2,928.72 : x
  2. Step 2: Convert to fraction form
    5,286.58/7,295.42 = 2,928.72/x
  3. Step 3: Cross multiply
    5,286.58x = 7,295.42 × 2,928.72
  4. Step 4: Simplify right side
    5,286.58x = 21,366,242.46
  5. Step 5: Solve for x
    x = 21,366,242.46/5,286.58
  6. Step 6: Final answer
    x = 4,041.60

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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.