Home / 5,378.39-8,021.57-4,724.55

Finding the Fourth Proportional to 5,378.39, 8,021.57 and 4,724.55

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Solution

The fourth proportional to 5,378.39, 8,021.57 and 4,724.55 is: 7,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.39 : 8,021.57 = 4,724.55 : x
  2. Step 2: Convert to fraction form
    5,378.39/8,021.57 = 4,724.55/x
  3. Step 3: Cross multiply
    5,378.39x = 8,021.57 × 4,724.55
  4. Step 4: Simplify right side
    5,378.39x = 37,898,320.35
  5. Step 5: Solve for x
    x = 37,898,320.35/5,378.39
  6. Step 6: Final answer
    x = 7,046.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.