Home / 3,147.93-4,344.30-1,821.69

Finding the Fourth Proportional to 3,147.93, 4,344.30 and 1,821.69

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Solution

The fourth proportional to 3,147.93, 4,344.30 and 1,821.69 is: 2,514.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.93 : 4,344.30 = 1,821.69 : x
  2. Step 2: Convert to fraction form
    3,147.93/4,344.30 = 1,821.69/x
  3. Step 3: Cross multiply
    3,147.93x = 4,344.30 × 1,821.69
  4. Step 4: Simplify right side
    3,147.93x = 7,913,967.87
  5. Step 5: Solve for x
    x = 7,913,967.87/3,147.93
  6. Step 6: Final answer
    x = 2,514.02

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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.