Home / 2,164.98-2,987.66-1,170.25

Finding the Fourth Proportional to 2,164.98, 2,987.66 and 1,170.25

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Solution

The fourth proportional to 2,164.98, 2,987.66 and 1,170.25 is: 1,614.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.98 : 2,987.66 = 1,170.25 : x
  2. Step 2: Convert to fraction form
    2,164.98/2,987.66 = 1,170.25/x
  3. Step 3: Cross multiply
    2,164.98x = 2,987.66 × 1,170.25
  4. Step 4: Simplify right side
    2,164.98x = 3,496,301.28
  5. Step 5: Solve for x
    x = 3,496,301.28/2,164.98
  6. Step 6: Final answer
    x = 1,614.94

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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.