Home / 5,417.28-8,121.36-4,935.84

Finding the Fourth Proportional to 5,417.28, 8,121.36 and 4,935.84

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Solution

The fourth proportional to 5,417.28, 8,121.36 and 4,935.84 is: 7,399.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.28 : 8,121.36 = 4,935.84 : x
  2. Step 2: Convert to fraction form
    5,417.28/8,121.36 = 4,935.84/x
  3. Step 3: Cross multiply
    5,417.28x = 8,121.36 × 4,935.84
  4. Step 4: Simplify right side
    5,417.28x = 40,085,733.54
  5. Step 5: Solve for x
    x = 40,085,733.54/5,417.28
  6. Step 6: Final answer
    x = 7,399.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.