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Finding the Fourth Proportional to 3,689.46, 5,533.11 and 3,652.20

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Solution

The fourth proportional to 3,689.46, 5,533.11 and 3,652.20 is: 5,477.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.46 : 5,533.11 = 3,652.20 : x
  2. Step 2: Convert to fraction form
    3,689.46/5,533.11 = 3,652.20/x
  3. Step 3: Cross multiply
    3,689.46x = 5,533.11 × 3,652.20
  4. Step 4: Simplify right side
    3,689.46x = 20,208,024.34
  5. Step 5: Solve for x
    x = 20,208,024.34/3,689.46
  6. Step 6: Final answer
    x = 5,477.23

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Double scale
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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.