Home / 2,686.08-3,705.84-1,755.12

Finding the Fourth Proportional to 2,686.08, 3,705.84 and 1,755.12

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Solution

The fourth proportional to 2,686.08, 3,705.84 and 1,755.12 is: 2,421.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.08 : 3,705.84 = 1,755.12 : x
  2. Step 2: Convert to fraction form
    2,686.08/3,705.84 = 1,755.12/x
  3. Step 3: Cross multiply
    2,686.08x = 3,705.84 × 1,755.12
  4. Step 4: Simplify right side
    2,686.08x = 6,504,193.90
  5. Step 5: Solve for x
    x = 6,504,193.90/2,686.08
  6. Step 6: Final answer
    x = 2,421.44

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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.