Home / 3,313.39-4,572.39-1,821.46

Finding the Fourth Proportional to 3,313.39, 4,572.39 and 1,821.46

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Solution

The fourth proportional to 3,313.39, 4,572.39 and 1,821.46 is: 2,513.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.39 : 4,572.39 = 1,821.46 : x
  2. Step 2: Convert to fraction form
    3,313.39/4,572.39 = 1,821.46/x
  3. Step 3: Cross multiply
    3,313.39x = 4,572.39 × 1,821.46
  4. Step 4: Simplify right side
    3,313.39x = 8,328,425.49
  5. Step 5: Solve for x
    x = 8,328,425.49/3,313.39
  6. Step 6: Final answer
    x = 2,513.57

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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.