Home / 3,317.58-4,578.71-2,142.07

Finding the Fourth Proportional to 3,317.58, 4,578.71 and 2,142.07

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Solution

The fourth proportional to 3,317.58, 4,578.71 and 2,142.07 is: 2,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.58 : 4,578.71 = 2,142.07 : x
  2. Step 2: Convert to fraction form
    3,317.58/4,578.71 = 2,142.07/x
  3. Step 3: Cross multiply
    3,317.58x = 4,578.71 × 2,142.07
  4. Step 4: Simplify right side
    3,317.58x = 9,807,917.33
  5. Step 5: Solve for x
    x = 9,807,917.33/3,317.58
  6. Step 6: Final answer
    x = 2,956.35

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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.