Home / 6,121.78-9,184.05-1,962.16

Finding the Fourth Proportional to 6,121.78, 9,184.05 and 1,962.16

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Solution

The fourth proportional to 6,121.78, 9,184.05 and 1,962.16 is: 2,943.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.78 : 9,184.05 = 1,962.16 : x
  2. Step 2: Convert to fraction form
    6,121.78/9,184.05 = 1,962.16/x
  3. Step 3: Cross multiply
    6,121.78x = 9,184.05 × 1,962.16
  4. Step 4: Simplify right side
    6,121.78x = 18,020,552.59
  5. Step 5: Solve for x
    x = 18,020,552.59/6,121.78
  6. Step 6: Final answer
    x = 2,943.68

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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.