Home / 3,657.45-5,486.58-1,192.35

Finding the Fourth Proportional to 3,657.45, 5,486.58 and 1,192.35

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Solution

The fourth proportional to 3,657.45, 5,486.58 and 1,192.35 is: 1,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.45 : 5,486.58 = 1,192.35 : x
  2. Step 2: Convert to fraction form
    3,657.45/5,486.58 = 1,192.35/x
  3. Step 3: Cross multiply
    3,657.45x = 5,486.58 × 1,192.35
  4. Step 4: Simplify right side
    3,657.45x = 6,541,923.66
  5. Step 5: Solve for x
    x = 6,541,923.66/3,657.45
  6. Step 6: Final answer
    x = 1,788.66

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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.