Home / 6,922.79-9,551.38-4,090.42

Finding the Fourth Proportional to 6,922.79, 9,551.38 and 4,090.42

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Solution

The fourth proportional to 6,922.79, 9,551.38 and 4,090.42 is: 5,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.79 : 9,551.38 = 4,090.42 : x
  2. Step 2: Convert to fraction form
    6,922.79/9,551.38 = 4,090.42/x
  3. Step 3: Cross multiply
    6,922.79x = 9,551.38 × 4,090.42
  4. Step 4: Simplify right side
    6,922.79x = 39,069,157.49
  5. Step 5: Solve for x
    x = 39,069,157.49/6,922.79
  6. Step 6: Final answer
    x = 5,643.56

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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.