Home / 2,106.97-3,160.24-646.13

Finding the Fourth Proportional to 2,106.97, 3,160.24 and 646.13

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Solution

The fourth proportional to 2,106.97, 3,160.24 and 646.13 is: 969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.97 : 3,160.24 = 646.13 : x
  2. Step 2: Convert to fraction form
    2,106.97/3,160.24 = 646.13/x
  3. Step 3: Cross multiply
    2,106.97x = 3,160.24 × 646.13
  4. Step 4: Simplify right side
    2,106.97x = 2,041,932.16
  5. Step 5: Solve for x
    x = 2,041,932.16/2,106.97
  6. Step 6: Final answer
    x = 969.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.