Home / 2,688.38-3,710.37-1,641.04

Finding the Fourth Proportional to 2,688.38, 3,710.37 and 1,641.04

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Solution

The fourth proportional to 2,688.38, 3,710.37 and 1,641.04 is: 2,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.38 : 3,710.37 = 1,641.04 : x
  2. Step 2: Convert to fraction form
    2,688.38/3,710.37 = 1,641.04/x
  3. Step 3: Cross multiply
    2,688.38x = 3,710.37 × 1,641.04
  4. Step 4: Simplify right side
    2,688.38x = 6,088,865.58
  5. Step 5: Solve for x
    x = 6,088,865.58/2,688.38
  6. Step 6: Final answer
    x = 2,264.88

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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.