Home / 3,705.19-5,113.63-2,213.93

Finding the Fourth Proportional to 3,705.19, 5,113.63 and 2,213.93

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Solution

The fourth proportional to 3,705.19, 5,113.63 and 2,213.93 is: 3,055.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.19 : 5,113.63 = 2,213.93 : x
  2. Step 2: Convert to fraction form
    3,705.19/5,113.63 = 2,213.93/x
  3. Step 3: Cross multiply
    3,705.19x = 5,113.63 × 2,213.93
  4. Step 4: Simplify right side
    3,705.19x = 11,321,234.42
  5. Step 5: Solve for x
    x = 11,321,234.42/3,705.19
  6. Step 6: Final answer
    x = 3,055.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.