Home / 5,286.17-7,294.92-2,928.77

Finding the Fourth Proportional to 5,286.17, 7,294.92 and 2,928.77

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Solution

The fourth proportional to 5,286.17, 7,294.92 and 2,928.77 is: 4,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.17 : 7,294.92 = 2,928.77 : x
  2. Step 2: Convert to fraction form
    5,286.17/7,294.92 = 2,928.77/x
  3. Step 3: Cross multiply
    5,286.17x = 7,294.92 × 2,928.77
  4. Step 4: Simplify right side
    5,286.17x = 21,365,141.24
  5. Step 5: Solve for x
    x = 21,365,141.24/5,286.17
  6. Step 6: Final answer
    x = 4,041.70

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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.