Home / 5,286.48-7,295.05-2,928.47

Finding the Fourth Proportional to 5,286.48, 7,295.05 and 2,928.47

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Solution

The fourth proportional to 5,286.48, 7,295.05 and 2,928.47 is: 4,041.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.48 : 7,295.05 = 2,928.47 : x
  2. Step 2: Convert to fraction form
    5,286.48/7,295.05 = 2,928.47/x
  3. Step 3: Cross multiply
    5,286.48x = 7,295.05 × 2,928.47
  4. Step 4: Simplify right side
    5,286.48x = 21,363,335.07
  5. Step 5: Solve for x
    x = 21,363,335.07/5,286.48
  6. Step 6: Final answer
    x = 4,041.13

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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.