Home / 5,230.74-7,218.39-2,992.65

Finding the Fourth Proportional to 5,230.74, 7,218.39 and 2,992.65

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Solution

The fourth proportional to 5,230.74, 7,218.39 and 2,992.65 is: 4,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.74 : 7,218.39 = 2,992.65 : x
  2. Step 2: Convert to fraction form
    5,230.74/7,218.39 = 2,992.65/x
  3. Step 3: Cross multiply
    5,230.74x = 7,218.39 × 2,992.65
  4. Step 4: Simplify right side
    5,230.74x = 21,602,114.83
  5. Step 5: Solve for x
    x = 21,602,114.83/5,230.74
  6. Step 6: Final answer
    x = 4,129.84

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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.