Home / 3,686.45-5,529.67-1,089.18

Finding the Fourth Proportional to 3,686.45, 5,529.67 and 1,089.18

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Solution

The fourth proportional to 3,686.45, 5,529.67 and 1,089.18 is: 1,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.45 : 5,529.67 = 1,089.18 : x
  2. Step 2: Convert to fraction form
    3,686.45/5,529.67 = 1,089.18/x
  3. Step 3: Cross multiply
    3,686.45x = 5,529.67 × 1,089.18
  4. Step 4: Simplify right side
    3,686.45x = 6,022,803.25
  5. Step 5: Solve for x
    x = 6,022,803.25/3,686.45
  6. Step 6: Final answer
    x = 1,633.77

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Double scale
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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.