Home / 5,210.72-7,190.60-2,852.88

Finding the Fourth Proportional to 5,210.72, 7,190.60 and 2,852.88

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Solution

The fourth proportional to 5,210.72, 7,190.60 and 2,852.88 is: 3,936.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.72 : 7,190.60 = 2,852.88 : x
  2. Step 2: Convert to fraction form
    5,210.72/7,190.60 = 2,852.88/x
  3. Step 3: Cross multiply
    5,210.72x = 7,190.60 × 2,852.88
  4. Step 4: Simplify right side
    5,210.72x = 20,513,918.93
  5. Step 5: Solve for x
    x = 20,513,918.93/5,210.72
  6. Step 6: Final answer
    x = 3,936.87

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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.