Home / 5,538.51-7,643.12-3,020.58

Finding the Fourth Proportional to 5,538.51, 7,643.12 and 3,020.58

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Solution

The fourth proportional to 5,538.51, 7,643.12 and 3,020.58 is: 4,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.51 : 7,643.12 = 3,020.58 : x
  2. Step 2: Convert to fraction form
    5,538.51/7,643.12 = 3,020.58/x
  3. Step 3: Cross multiply
    5,538.51x = 7,643.12 × 3,020.58
  4. Step 4: Simplify right side
    5,538.51x = 23,086,655.41
  5. Step 5: Solve for x
    x = 23,086,655.41/5,538.51
  6. Step 6: Final answer
    x = 4,168.39

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Half scale
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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.