Home / 7,575.39-10,452.80-4,218.12

Finding the Fourth Proportional to 7,575.39, 10,452.80 and 4,218.12

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Solution

The fourth proportional to 7,575.39, 10,452.80 and 4,218.12 is: 5,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,575.39 : 10,452.80 = 4,218.12 : x
  2. Step 2: Convert to fraction form
    7,575.39/10,452.80 = 4,218.12/x
  3. Step 3: Cross multiply
    7,575.39x = 10,452.80 × 4,218.12
  4. Step 4: Simplify right side
    7,575.39x = 44,091,143.65
  5. Step 5: Solve for x
    x = 44,091,143.65/7,575.39
  6. Step 6: Final answer
    x = 5,820.31

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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.