Home / 3,132.19-4,322.60-1,788.20

Finding the Fourth Proportional to 3,132.19, 4,322.60 and 1,788.20

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Solution

The fourth proportional to 3,132.19, 4,322.60 and 1,788.20 is: 2,467.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.19 : 4,322.60 = 1,788.20 : x
  2. Step 2: Convert to fraction form
    3,132.19/4,322.60 = 1,788.20/x
  3. Step 3: Cross multiply
    3,132.19x = 4,322.60 × 1,788.20
  4. Step 4: Simplify right side
    3,132.19x = 7,729,673.32
  5. Step 5: Solve for x
    x = 7,729,673.32/3,132.19
  6. Step 6: Final answer
    x = 2,467.82

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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.