Home / 5,028.50-6,939.45-2,820.50

Finding the Fourth Proportional to 5,028.50, 6,939.45 and 2,820.50

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Solution

The fourth proportional to 5,028.50, 6,939.45 and 2,820.50 is: 3,892.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.50 : 6,939.45 = 2,820.50 : x
  2. Step 2: Convert to fraction form
    5,028.50/6,939.45 = 2,820.50/x
  3. Step 3: Cross multiply
    5,028.50x = 6,939.45 × 2,820.50
  4. Step 4: Simplify right side
    5,028.50x = 19,572,718.73
  5. Step 5: Solve for x
    x = 19,572,718.73/5,028.50
  6. Step 6: Final answer
    x = 3,892.36

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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.