Home / 2,684.91-3,703.83-1,688.31

Finding the Fourth Proportional to 2,684.91, 3,703.83 and 1,688.31

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Solution

The fourth proportional to 2,684.91, 3,703.83 and 1,688.31 is: 2,329.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.91 : 3,703.83 = 1,688.31 : x
  2. Step 2: Convert to fraction form
    2,684.91/3,703.83 = 1,688.31/x
  3. Step 3: Cross multiply
    2,684.91x = 3,703.83 × 1,688.31
  4. Step 4: Simplify right side
    2,684.91x = 6,253,206.90
  5. Step 5: Solve for x
    x = 6,253,206.90/2,684.91
  6. Step 6: Final answer
    x = 2,329.02

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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.