Home / 4,129.95-6,195.69-1,356.78

Finding the Fourth Proportional to 4,129.95, 6,195.69 and 1,356.78

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Solution

The fourth proportional to 4,129.95, 6,195.69 and 1,356.78 is: 2,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.95 : 6,195.69 = 1,356.78 : x
  2. Step 2: Convert to fraction form
    4,129.95/6,195.69 = 1,356.78/x
  3. Step 3: Cross multiply
    4,129.95x = 6,195.69 × 1,356.78
  4. Step 4: Simplify right side
    4,129.95x = 8,406,188.28
  5. Step 5: Solve for x
    x = 8,406,188.28/4,129.95
  6. Step 6: Final answer
    x = 2,035.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.