Home / 6,820.90-9,422.40-5,268.94

Finding the Fourth Proportional to 6,820.90, 9,422.40 and 5,268.94

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Solution

The fourth proportional to 6,820.90, 9,422.40 and 5,268.94 is: 7,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.90 : 9,422.40 = 5,268.94 : x
  2. Step 2: Convert to fraction form
    6,820.90/9,422.40 = 5,268.94/x
  3. Step 3: Cross multiply
    6,820.90x = 9,422.40 × 5,268.94
  4. Step 4: Simplify right side
    6,820.90x = 49,646,060.26
  5. Step 5: Solve for x
    x = 49,646,060.26/6,820.90
  6. Step 6: Final answer
    x = 7,278.52

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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.