Home / 5,286.30-7,295.33-2,928.45

Finding the Fourth Proportional to 5,286.30, 7,295.33 and 2,928.45

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Solution

The fourth proportional to 5,286.30, 7,295.33 and 2,928.45 is: 4,041.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.30 : 7,295.33 = 2,928.45 : x
  2. Step 2: Convert to fraction form
    5,286.30/7,295.33 = 2,928.45/x
  3. Step 3: Cross multiply
    5,286.30x = 7,295.33 × 2,928.45
  4. Step 4: Simplify right side
    5,286.30x = 21,363,969.91
  5. Step 5: Solve for x
    x = 21,363,969.91/5,286.30
  6. Step 6: Final answer
    x = 4,041.38

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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.