Home / 3,765.32-5,643.42-3,322.45

Finding the Fourth Proportional to 3,765.32, 5,643.42 and 3,322.45

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Solution

The fourth proportional to 3,765.32, 5,643.42 and 3,322.45 is: 4,979.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.32 : 5,643.42 = 3,322.45 : x
  2. Step 2: Convert to fraction form
    3,765.32/5,643.42 = 3,322.45/x
  3. Step 3: Cross multiply
    3,765.32x = 5,643.42 × 3,322.45
  4. Step 4: Simplify right side
    3,765.32x = 18,749,980.78
  5. Step 5: Solve for x
    x = 18,749,980.78/3,765.32
  6. Step 6: Final answer
    x = 4,979.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.