Home / 2,688.84-3,708.14-1,743.65

Finding the Fourth Proportional to 2,688.84, 3,708.14 and 1,743.65

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Solution

The fourth proportional to 2,688.84, 3,708.14 and 1,743.65 is: 2,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.84 : 3,708.14 = 1,743.65 : x
  2. Step 2: Convert to fraction form
    2,688.84/3,708.14 = 1,743.65/x
  3. Step 3: Cross multiply
    2,688.84x = 3,708.14 × 1,743.65
  4. Step 4: Simplify right side
    2,688.84x = 6,465,671.05
  5. Step 5: Solve for x
    x = 6,465,671.05/2,688.84
  6. Step 6: Final answer
    x = 2,404.63

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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.