Home / 2,106.19-3,158.47-1,064.13

Finding the Fourth Proportional to 2,106.19, 3,158.47 and 1,064.13

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Solution

The fourth proportional to 2,106.19, 3,158.47 and 1,064.13 is: 1,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.19 : 3,158.47 = 1,064.13 : x
  2. Step 2: Convert to fraction form
    2,106.19/3,158.47 = 1,064.13/x
  3. Step 3: Cross multiply
    2,106.19x = 3,158.47 × 1,064.13
  4. Step 4: Simplify right side
    2,106.19x = 3,361,022.68
  5. Step 5: Solve for x
    x = 3,361,022.68/2,106.19
  6. Step 6: Final answer
    x = 1,595.78

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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.