Home / 6,925.78-9,557.22-3,781.36

Finding the Fourth Proportional to 6,925.78, 9,557.22 and 3,781.36

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Solution

The fourth proportional to 6,925.78, 9,557.22 and 3,781.36 is: 5,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,925.78 : 9,557.22 = 3,781.36 : x
  2. Step 2: Convert to fraction form
    6,925.78/9,557.22 = 3,781.36/x
  3. Step 3: Cross multiply
    6,925.78x = 9,557.22 × 3,781.36
  4. Step 4: Simplify right side
    6,925.78x = 36,139,289.42
  5. Step 5: Solve for x
    x = 36,139,289.42/6,925.78
  6. Step 6: Final answer
    x = 5,218.08

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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.