Home / 5,028.96-6,938.16-2,820.96

Finding the Fourth Proportional to 5,028.96, 6,938.16 and 2,820.96

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Solution

The fourth proportional to 5,028.96, 6,938.16 and 2,820.96 is: 3,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.96 : 6,938.16 = 2,820.96 : x
  2. Step 2: Convert to fraction form
    5,028.96/6,938.16 = 2,820.96/x
  3. Step 3: Cross multiply
    5,028.96x = 6,938.16 × 2,820.96
  4. Step 4: Simplify right side
    5,028.96x = 19,572,271.83
  5. Step 5: Solve for x
    x = 19,572,271.83/5,028.96
  6. Step 6: Final answer
    x = 3,891.91

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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.