Home / 2,171.13-2,994.09-1,425.72

Finding the Fourth Proportional to 2,171.13, 2,994.09 and 1,425.72

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Solution

The fourth proportional to 2,171.13, 2,994.09 and 1,425.72 is: 1,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.13 : 2,994.09 = 1,425.72 : x
  2. Step 2: Convert to fraction form
    2,171.13/2,994.09 = 1,425.72/x
  3. Step 3: Cross multiply
    2,171.13x = 2,994.09 × 1,425.72
  4. Step 4: Simplify right side
    2,171.13x = 4,268,733.99
  5. Step 5: Solve for x
    x = 4,268,733.99/2,171.13
  6. Step 6: Final answer
    x = 1,966.13

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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.