Home / 3,132.21-4,322.01-1,805.97

Finding the Fourth Proportional to 3,132.21, 4,322.01 and 1,805.97

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Solution

The fourth proportional to 3,132.21, 4,322.01 and 1,805.97 is: 2,491.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.21 : 4,322.01 = 1,805.97 : x
  2. Step 2: Convert to fraction form
    3,132.21/4,322.01 = 1,805.97/x
  3. Step 3: Cross multiply
    3,132.21x = 4,322.01 × 1,805.97
  4. Step 4: Simplify right side
    3,132.21x = 7,805,420.40
  5. Step 5: Solve for x
    x = 7,805,420.40/3,132.21
  6. Step 6: Final answer
    x = 2,491.99

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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.