Home / 2,686.86-3,707.87-1,692.16

Finding the Fourth Proportional to 2,686.86, 3,707.87 and 1,692.16

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Solution

The fourth proportional to 2,686.86, 3,707.87 and 1,692.16 is: 2,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.86 : 3,707.87 = 1,692.16 : x
  2. Step 2: Convert to fraction form
    2,686.86/3,707.87 = 1,692.16/x
  3. Step 3: Cross multiply
    2,686.86x = 3,707.87 × 1,692.16
  4. Step 4: Simplify right side
    2,686.86x = 6,274,291.57
  5. Step 5: Solve for x
    x = 6,274,291.57/2,686.86
  6. Step 6: Final answer
    x = 2,335.18

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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.