Home / 6,244.39-8,617.47-4,121.78

Finding the Fourth Proportional to 6,244.39, 8,617.47 and 4,121.78

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Solution

The fourth proportional to 6,244.39, 8,617.47 and 4,121.78 is: 5,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,244.39 : 8,617.47 = 4,121.78 : x
  2. Step 2: Convert to fraction form
    6,244.39/8,617.47 = 4,121.78/x
  3. Step 3: Cross multiply
    6,244.39x = 8,617.47 × 4,121.78
  4. Step 4: Simplify right side
    6,244.39x = 35,519,315.50
  5. Step 5: Solve for x
    x = 35,519,315.50/6,244.39
  6. Step 6: Final answer
    x = 5,688.20

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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.