Home / 2,164.18-2,986.80-1,325.44

Finding the Fourth Proportional to 2,164.18, 2,986.80 and 1,325.44

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Solution

The fourth proportional to 2,164.18, 2,986.80 and 1,325.44 is: 1,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.18 : 2,986.80 = 1,325.44 : x
  2. Step 2: Convert to fraction form
    2,164.18/2,986.80 = 1,325.44/x
  3. Step 3: Cross multiply
    2,164.18x = 2,986.80 × 1,325.44
  4. Step 4: Simplify right side
    2,164.18x = 3,958,824.19
  5. Step 5: Solve for x
    x = 3,958,824.19/2,164.18
  6. Step 6: Final answer
    x = 1,829.25

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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.