Home / 5,220.71-7,204.76-2,862.83

Finding the Fourth Proportional to 5,220.71, 7,204.76 and 2,862.83

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Solution

The fourth proportional to 5,220.71, 7,204.76 and 2,862.83 is: 3,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.71 : 7,204.76 = 2,862.83 : x
  2. Step 2: Convert to fraction form
    5,220.71/7,204.76 = 2,862.83/x
  3. Step 3: Cross multiply
    5,220.71x = 7,204.76 × 2,862.83
  4. Step 4: Simplify right side
    5,220.71x = 20,625,988.76
  5. Step 5: Solve for x
    x = 20,625,988.76/5,220.71
  6. Step 6: Final answer
    x = 3,950.80

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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.