Home / 3,313.47-4,572.62-1,821.35

Finding the Fourth Proportional to 3,313.47, 4,572.62 and 1,821.35

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Solution

The fourth proportional to 3,313.47, 4,572.62 and 1,821.35 is: 2,513.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.47 : 4,572.62 = 1,821.35 : x
  2. Step 2: Convert to fraction form
    3,313.47/4,572.62 = 1,821.35/x
  3. Step 3: Cross multiply
    3,313.47x = 4,572.62 × 1,821.35
  4. Step 4: Simplify right side
    3,313.47x = 8,328,309.47
  5. Step 5: Solve for x
    x = 8,328,309.47/3,313.47
  6. Step 6: Final answer
    x = 2,513.47

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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.