Home / 3,578.81-4,938.18-2,321.58

Finding the Fourth Proportional to 3,578.81, 4,938.18 and 2,321.58

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Solution

The fourth proportional to 3,578.81, 4,938.18 and 2,321.58 is: 3,203.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.81 : 4,938.18 = 2,321.58 : x
  2. Step 2: Convert to fraction form
    3,578.81/4,938.18 = 2,321.58/x
  3. Step 3: Cross multiply
    3,578.81x = 4,938.18 × 2,321.58
  4. Step 4: Simplify right side
    3,578.81x = 11,464,392.27
  5. Step 5: Solve for x
    x = 11,464,392.27/3,578.81
  6. Step 6: Final answer
    x = 3,203.41

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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.