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Finding the Fourth Proportional to 7,085.14, 9,777.22 and 3,941.26

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Solution

The fourth proportional to 7,085.14, 9,777.22 and 3,941.26 is: 5,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.14 : 9,777.22 = 3,941.26 : x
  2. Step 2: Convert to fraction form
    7,085.14/9,777.22 = 3,941.26/x
  3. Step 3: Cross multiply
    7,085.14x = 9,777.22 × 3,941.26
  4. Step 4: Simplify right side
    7,085.14x = 38,534,566.10
  5. Step 5: Solve for x
    x = 38,534,566.10/7,085.14
  6. Step 6: Final answer
    x = 5,438.79

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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.