Home / 7,575.75-10,454.22-4,218.71

Finding the Fourth Proportional to 7,575.75, 10,454.22 and 4,218.71

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Solution

The fourth proportional to 7,575.75, 10,454.22 and 4,218.71 is: 5,821.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,575.75 : 10,454.22 = 4,218.71 : x
  2. Step 2: Convert to fraction form
    7,575.75/10,454.22 = 4,218.71/x
  3. Step 3: Cross multiply
    7,575.75x = 10,454.22 × 4,218.71
  4. Step 4: Simplify right side
    7,575.75x = 44,103,270.19
  5. Step 5: Solve for x
    x = 44,103,270.19/7,575.75
  6. Step 6: Final answer
    x = 5,821.64

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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.