Home / 3,705.60-5,557.72-1,240.12

Finding the Fourth Proportional to 3,705.60, 5,557.72 and 1,240.12

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Solution

The fourth proportional to 3,705.60, 5,557.72 and 1,240.12 is: 1,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.60 : 5,557.72 = 1,240.12 : x
  2. Step 2: Convert to fraction form
    3,705.60/5,557.72 = 1,240.12/x
  3. Step 3: Cross multiply
    3,705.60x = 5,557.72 × 1,240.12
  4. Step 4: Simplify right side
    3,705.60x = 6,892,239.73
  5. Step 5: Solve for x
    x = 6,892,239.73/3,705.60
  6. Step 6: Final answer
    x = 1,859.95

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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.