Home / 3,638.80-5,458.20-3,602.35

Finding the Fourth Proportional to 3,638.80, 5,458.20 and 3,602.35

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Solution

The fourth proportional to 3,638.80, 5,458.20 and 3,602.35 is: 5,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.80 : 5,458.20 = 3,602.35 : x
  2. Step 2: Convert to fraction form
    3,638.80/5,458.20 = 3,602.35/x
  3. Step 3: Cross multiply
    3,638.80x = 5,458.20 × 3,602.35
  4. Step 4: Simplify right side
    3,638.80x = 19,662,346.77
  5. Step 5: Solve for x
    x = 19,662,346.77/3,638.80
  6. Step 6: Final answer
    x = 5,403.53

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.