Home / 5,220.42-7,204.12-2,862.51

Finding the Fourth Proportional to 5,220.42, 7,204.12 and 2,862.51

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Solution

The fourth proportional to 5,220.42, 7,204.12 and 2,862.51 is: 3,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.42 : 7,204.12 = 2,862.51 : x
  2. Step 2: Convert to fraction form
    5,220.42/7,204.12 = 2,862.51/x
  3. Step 3: Cross multiply
    5,220.42x = 7,204.12 × 2,862.51
  4. Step 4: Simplify right side
    5,220.42x = 20,621,865.54
  5. Step 5: Solve for x
    x = 20,621,865.54/5,220.42
  6. Step 6: Final answer
    x = 3,950.23

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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.