Home / 5,538.02-7,643.64-3,181.46

Finding the Fourth Proportional to 5,538.02, 7,643.64 and 3,181.46

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Solution

The fourth proportional to 5,538.02, 7,643.64 and 3,181.46 is: 4,391.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.02 : 7,643.64 = 3,181.46 : x
  2. Step 2: Convert to fraction form
    5,538.02/7,643.64 = 3,181.46/x
  3. Step 3: Cross multiply
    5,538.02x = 7,643.64 × 3,181.46
  4. Step 4: Simplify right side
    5,538.02x = 24,317,896.70
  5. Step 5: Solve for x
    x = 24,317,896.70/5,538.02
  6. Step 6: Final answer
    x = 4,391.09

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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.