Home / 3,313.15-4,572.16-1,821.03

Finding the Fourth Proportional to 3,313.15, 4,572.16 and 1,821.03

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Solution

The fourth proportional to 3,313.15, 4,572.16 and 1,821.03 is: 2,513.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.15 : 4,572.16 = 1,821.03 : x
  2. Step 2: Convert to fraction form
    3,313.15/4,572.16 = 1,821.03/x
  3. Step 3: Cross multiply
    3,313.15x = 4,572.16 × 1,821.03
  4. Step 4: Simplify right side
    3,313.15x = 8,326,018.83
  5. Step 5: Solve for x
    x = 8,326,018.83/3,313.15
  6. Step 6: Final answer
    x = 2,513.02

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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.