Home / 2,688.12-3,706.20-1,849.14

Finding the Fourth Proportional to 2,688.12, 3,706.20 and 1,849.14

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Solution

The fourth proportional to 2,688.12, 3,706.20 and 1,849.14 is: 2,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.12 : 3,706.20 = 1,849.14 : x
  2. Step 2: Convert to fraction form
    2,688.12/3,706.20 = 1,849.14/x
  3. Step 3: Cross multiply
    2,688.12x = 3,706.20 × 1,849.14
  4. Step 4: Simplify right side
    2,688.12x = 6,853,282.67
  5. Step 5: Solve for x
    x = 6,853,282.67/2,688.12
  6. Step 6: Final answer
    x = 2,549.47

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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.