Home / 3,305.64-4,570.56-2,890.68

Finding the Fourth Proportional to 3,305.64, 4,570.56 and 2,890.68

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Solution

The fourth proportional to 3,305.64, 4,570.56 and 2,890.68 is: 3,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,305.64 : 4,570.56 = 2,890.68 : x
  2. Step 2: Convert to fraction form
    3,305.64/4,570.56 = 2,890.68/x
  3. Step 3: Cross multiply
    3,305.64x = 4,570.56 × 2,890.68
  4. Step 4: Simplify right side
    3,305.64x = 13,212,026.38
  5. Step 5: Solve for x
    x = 13,212,026.38/3,305.64
  6. Step 6: Final answer
    x = 3,996.81

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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.