Home / 6,781.55-9,359.35-4,129.34

Finding the Fourth Proportional to 6,781.55, 9,359.35 and 4,129.34

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Solution

The fourth proportional to 6,781.55, 9,359.35 and 4,129.34 is: 5,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.55 : 9,359.35 = 4,129.34 : x
  2. Step 2: Convert to fraction form
    6,781.55/9,359.35 = 4,129.34/x
  3. Step 3: Cross multiply
    6,781.55x = 9,359.35 × 4,129.34
  4. Step 4: Simplify right side
    6,781.55x = 38,647,881.21
  5. Step 5: Solve for x
    x = 38,647,881.21/6,781.55
  6. Step 6: Final answer
    x = 5,698.98

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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.