Home / 5,631.30-7,768.44-3,643.56

Finding the Fourth Proportional to 5,631.30, 7,768.44 and 3,643.56

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Solution

The fourth proportional to 5,631.30, 7,768.44 and 3,643.56 is: 5,026.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.30 : 7,768.44 = 3,643.56 : x
  2. Step 2: Convert to fraction form
    5,631.30/7,768.44 = 3,643.56/x
  3. Step 3: Cross multiply
    5,631.30x = 7,768.44 × 3,643.56
  4. Step 4: Simplify right side
    5,631.30x = 28,304,777.25
  5. Step 5: Solve for x
    x = 28,304,777.25/5,631.30
  6. Step 6: Final answer
    x = 5,026.33

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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.