Home / 3,132.45-4,322.84-1,716.20

Finding the Fourth Proportional to 3,132.45, 4,322.84 and 1,716.20

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Solution

The fourth proportional to 3,132.45, 4,322.84 and 1,716.20 is: 2,368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.45 : 4,322.84 = 1,716.20 : x
  2. Step 2: Convert to fraction form
    3,132.45/4,322.84 = 1,716.20/x
  3. Step 3: Cross multiply
    3,132.45x = 4,322.84 × 1,716.20
  4. Step 4: Simplify right side
    3,132.45x = 7,418,836.39
  5. Step 5: Solve for x
    x = 7,418,836.39/3,132.45
  6. Step 6: Final answer
    x = 2,368.39

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Half scale
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Double scale
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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.