Home / 6,131.95-8,465.57-4,039.72

Finding the Fourth Proportional to 6,131.95, 8,465.57 and 4,039.72

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Solution

The fourth proportional to 6,131.95, 8,465.57 and 4,039.72 is: 5,577.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.95 : 8,465.57 = 4,039.72 : x
  2. Step 2: Convert to fraction form
    6,131.95/8,465.57 = 4,039.72/x
  3. Step 3: Cross multiply
    6,131.95x = 8,465.57 × 4,039.72
  4. Step 4: Simplify right side
    6,131.95x = 34,198,532.44
  5. Step 5: Solve for x
    x = 34,198,532.44/6,131.95
  6. Step 6: Final answer
    x = 5,577.11

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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.