Home / 5,227.20-7,171.20-4,838.40

Finding the Fourth Proportional to 5,227.20, 7,171.20 and 4,838.40

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Solution

The fourth proportional to 5,227.20, 7,171.20 and 4,838.40 is: 6,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.20 : 7,171.20 = 4,838.40 : x
  2. Step 2: Convert to fraction form
    5,227.20/7,171.20 = 4,838.40/x
  3. Step 3: Cross multiply
    5,227.20x = 7,171.20 × 4,838.40
  4. Step 4: Simplify right side
    5,227.20x = 34,697,134.08
  5. Step 5: Solve for x
    x = 34,697,134.08/5,227.20
  6. Step 6: Final answer
    x = 6,637.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.