Home / 3,941.28-5,438.88-2,368.80

Finding the Fourth Proportional to 3,941.28, 5,438.88 and 2,368.80

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Solution

The fourth proportional to 3,941.28, 5,438.88 and 2,368.80 is: 3,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.28 : 5,438.88 = 2,368.80 : x
  2. Step 2: Convert to fraction form
    3,941.28/5,438.88 = 2,368.80/x
  3. Step 3: Cross multiply
    3,941.28x = 5,438.88 × 2,368.80
  4. Step 4: Simplify right side
    3,941.28x = 12,883,618.94
  5. Step 5: Solve for x
    x = 12,883,618.94/3,941.28
  6. Step 6: Final answer
    x = 3,268.89

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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.