Home / 5,072.78-7,616.46-4,990.16

Finding the Fourth Proportional to 5,072.78, 7,616.46 and 4,990.16

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Solution

The fourth proportional to 5,072.78, 7,616.46 and 4,990.16 is: 7,492.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.78 : 7,616.46 = 4,990.16 : x
  2. Step 2: Convert to fraction form
    5,072.78/7,616.46 = 4,990.16/x
  3. Step 3: Cross multiply
    5,072.78x = 7,616.46 × 4,990.16
  4. Step 4: Simplify right side
    5,072.78x = 38,007,354.03
  5. Step 5: Solve for x
    x = 38,007,354.03/5,072.78
  6. Step 6: Final answer
    x = 7,492.41

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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.