Home / 3,317.28-4,577.58-1,920.12

Finding the Fourth Proportional to 3,317.28, 4,577.58 and 1,920.12

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Solution

The fourth proportional to 3,317.28, 4,577.58 and 1,920.12 is: 2,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.28 : 4,577.58 = 1,920.12 : x
  2. Step 2: Convert to fraction form
    3,317.28/4,577.58 = 1,920.12/x
  3. Step 3: Cross multiply
    3,317.28x = 4,577.58 × 1,920.12
  4. Step 4: Simplify right side
    3,317.28x = 8,789,502.91
  5. Step 5: Solve for x
    x = 8,789,502.91/3,317.28
  6. Step 6: Final answer
    x = 2,649.61

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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.