Home / 5,538.72-7,643.12-3,303.12

Finding the Fourth Proportional to 5,538.72, 7,643.12 and 3,303.12

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Solution

The fourth proportional to 5,538.72, 7,643.12 and 3,303.12 is: 4,558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.72 : 7,643.12 = 3,303.12 : x
  2. Step 2: Convert to fraction form
    5,538.72/7,643.12 = 3,303.12/x
  3. Step 3: Cross multiply
    5,538.72x = 7,643.12 × 3,303.12
  4. Step 4: Simplify right side
    5,538.72x = 25,246,142.53
  5. Step 5: Solve for x
    x = 25,246,142.53/5,538.72
  6. Step 6: Final answer
    x = 4,558.12

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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.