Home / 4,955.20-6,839.64-2,860.72

Finding the Fourth Proportional to 4,955.20, 6,839.64 and 2,860.72

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Solution

The fourth proportional to 4,955.20, 6,839.64 and 2,860.72 is: 3,948.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.20 : 6,839.64 = 2,860.72 : x
  2. Step 2: Convert to fraction form
    4,955.20/6,839.64 = 2,860.72/x
  3. Step 3: Cross multiply
    4,955.20x = 6,839.64 × 2,860.72
  4. Step 4: Simplify right side
    4,955.20x = 19,566,294.94
  5. Step 5: Solve for x
    x = 19,566,294.94/4,955.20
  6. Step 6: Final answer
    x = 3,948.64

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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.