Home / 5,072.60-6,989.82-3,582.20

Finding the Fourth Proportional to 5,072.60, 6,989.82 and 3,582.20

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Solution

The fourth proportional to 5,072.60, 6,989.82 and 3,582.20 is: 4,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.60 : 6,989.82 = 3,582.20 : x
  2. Step 2: Convert to fraction form
    5,072.60/6,989.82 = 3,582.20/x
  3. Step 3: Cross multiply
    5,072.60x = 6,989.82 × 3,582.20
  4. Step 4: Simplify right side
    5,072.60x = 25,038,933.20
  5. Step 5: Solve for x
    x = 25,038,933.20/5,072.60
  6. Step 6: Final answer
    x = 4,936.11

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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.