Home / 5,931.78-8,185.23-3,278.76

Finding the Fourth Proportional to 5,931.78, 8,185.23 and 3,278.76

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Solution

The fourth proportional to 5,931.78, 8,185.23 and 3,278.76 is: 4,524.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.78 : 8,185.23 = 3,278.76 : x
  2. Step 2: Convert to fraction form
    5,931.78/8,185.23 = 3,278.76/x
  3. Step 3: Cross multiply
    5,931.78x = 8,185.23 × 3,278.76
  4. Step 4: Simplify right side
    5,931.78x = 26,837,404.71
  5. Step 5: Solve for x
    x = 26,837,404.71/5,931.78
  6. Step 6: Final answer
    x = 4,524.34

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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.