Home / 5,121.24-7,066.85-2,852.40

Finding the Fourth Proportional to 5,121.24, 7,066.85 and 2,852.40

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Solution

The fourth proportional to 5,121.24, 7,066.85 and 2,852.40 is: 3,936.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.24 : 7,066.85 = 2,852.40 : x
  2. Step 2: Convert to fraction form
    5,121.24/7,066.85 = 2,852.40/x
  3. Step 3: Cross multiply
    5,121.24x = 7,066.85 × 2,852.40
  4. Step 4: Simplify right side
    5,121.24x = 20,157,516.57
  5. Step 5: Solve for x
    x = 20,157,516.57/5,121.24
  6. Step 6: Final answer
    x = 3,936.06

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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.