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Finding the Fourth Proportional to 2,169.90, 2,995.92 and 1,671.66

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Solution

The fourth proportional to 2,169.90, 2,995.92 and 1,671.66 is: 2,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.90 : 2,995.92 = 1,671.66 : x
  2. Step 2: Convert to fraction form
    2,169.90/2,995.92 = 1,671.66/x
  3. Step 3: Cross multiply
    2,169.90x = 2,995.92 × 1,671.66
  4. Step 4: Simplify right side
    2,169.90x = 5,008,159.63
  5. Step 5: Solve for x
    x = 5,008,159.63/2,169.90
  6. Step 6: Final answer
    x = 2,308.01

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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.