Home / 7,412.78-10,229.48-4,055.59

Finding the Fourth Proportional to 7,412.78, 10,229.48 and 4,055.59

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Solution

The fourth proportional to 7,412.78, 10,229.48 and 4,055.59 is: 5,596.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.78 : 10,229.48 = 4,055.59 : x
  2. Step 2: Convert to fraction form
    7,412.78/10,229.48 = 4,055.59/x
  3. Step 3: Cross multiply
    7,412.78x = 10,229.48 × 4,055.59
  4. Step 4: Simplify right side
    7,412.78x = 41,486,525.65
  5. Step 5: Solve for x
    x = 41,486,525.65/7,412.78
  6. Step 6: Final answer
    x = 5,596.62

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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.