Home / 3,187.85-4,399.17-1,771.53

Finding the Fourth Proportional to 3,187.85, 4,399.17 and 1,771.53

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Solution

The fourth proportional to 3,187.85, 4,399.17 and 1,771.53 is: 2,444.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.85 : 4,399.17 = 1,771.53 : x
  2. Step 2: Convert to fraction form
    3,187.85/4,399.17 = 1,771.53/x
  3. Step 3: Cross multiply
    3,187.85x = 4,399.17 × 1,771.53
  4. Step 4: Simplify right side
    3,187.85x = 7,793,261.63
  5. Step 5: Solve for x
    x = 7,793,261.63/3,187.85
  6. Step 6: Final answer
    x = 2,444.68

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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.