Home / 4,168.80-5,753.74-2,678.60

Finding the Fourth Proportional to 4,168.80, 5,753.74 and 2,678.60

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Solution

The fourth proportional to 4,168.80, 5,753.74 and 2,678.60 is: 3,696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,168.80 : 5,753.74 = 2,678.60 : x
  2. Step 2: Convert to fraction form
    4,168.80/5,753.74 = 2,678.60/x
  3. Step 3: Cross multiply
    4,168.80x = 5,753.74 × 2,678.60
  4. Step 4: Simplify right side
    4,168.80x = 15,411,967.96
  5. Step 5: Solve for x
    x = 15,411,967.96/4,168.80
  6. Step 6: Final answer
    x = 3,696.98

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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.