Home / 4,985.85-6,880.29-2,747.47

Finding the Fourth Proportional to 4,985.85, 6,880.29 and 2,747.47

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Solution

The fourth proportional to 4,985.85, 6,880.29 and 2,747.47 is: 3,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.85 : 6,880.29 = 2,747.47 : x
  2. Step 2: Convert to fraction form
    4,985.85/6,880.29 = 2,747.47/x
  3. Step 3: Cross multiply
    4,985.85x = 6,880.29 × 2,747.47
  4. Step 4: Simplify right side
    4,985.85x = 18,903,391.22
  5. Step 5: Solve for x
    x = 18,903,391.22/4,985.85
  6. Step 6: Final answer
    x = 3,791.41

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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.