Home / 3,705.14-5,113.10-2,111.74

Finding the Fourth Proportional to 3,705.14, 5,113.10 and 2,111.74

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Solution

The fourth proportional to 3,705.14, 5,113.10 and 2,111.74 is: 2,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.14 : 5,113.10 = 2,111.74 : x
  2. Step 2: Convert to fraction form
    3,705.14/5,113.10 = 2,111.74/x
  3. Step 3: Cross multiply
    3,705.14x = 5,113.10 × 2,111.74
  4. Step 4: Simplify right side
    3,705.14x = 10,797,537.79
  5. Step 5: Solve for x
    x = 10,797,537.79/3,705.14
  6. Step 6: Final answer
    x = 2,914.21

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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.