Home / 3,313.22-4,572.21-1,821.14

Finding the Fourth Proportional to 3,313.22, 4,572.21 and 1,821.14

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Solution

The fourth proportional to 3,313.22, 4,572.21 and 1,821.14 is: 2,513.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.22 : 4,572.21 = 1,821.14 : x
  2. Step 2: Convert to fraction form
    3,313.22/4,572.21 = 1,821.14/x
  3. Step 3: Cross multiply
    3,313.22x = 4,572.21 × 1,821.14
  4. Step 4: Simplify right side
    3,313.22x = 8,326,634.52
  5. Step 5: Solve for x
    x = 8,326,634.52/3,313.22
  6. Step 6: Final answer
    x = 2,513.15

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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.