Home / 5,122.96-7,070.57-2,969.21

Finding the Fourth Proportional to 5,122.96, 7,070.57 and 2,969.21

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Solution

The fourth proportional to 5,122.96, 7,070.57 and 2,969.21 is: 4,098.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.96 : 7,070.57 = 2,969.21 : x
  2. Step 2: Convert to fraction form
    5,122.96/7,070.57 = 2,969.21/x
  3. Step 3: Cross multiply
    5,122.96x = 7,070.57 × 2,969.21
  4. Step 4: Simplify right side
    5,122.96x = 20,994,007.15
  5. Step 5: Solve for x
    x = 20,994,007.15/5,122.96
  6. Step 6: Final answer
    x = 4,098.02

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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.