Home / 5,218.20-7,827.30-4,975.20

Finding the Fourth Proportional to 5,218.20, 7,827.30 and 4,975.20

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Solution

The fourth proportional to 5,218.20, 7,827.30 and 4,975.20 is: 7,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.20 : 7,827.30 = 4,975.20 : x
  2. Step 2: Convert to fraction form
    5,218.20/7,827.30 = 4,975.20/x
  3. Step 3: Cross multiply
    5,218.20x = 7,827.30 × 4,975.20
  4. Step 4: Simplify right side
    5,218.20x = 38,942,382.96
  5. Step 5: Solve for x
    x = 38,942,382.96/5,218.20
  6. Step 6: Final answer
    x = 7,462.80

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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.