Home / 3,765.44-5,643.84-1,298.72

Finding the Fourth Proportional to 3,765.44, 5,643.84 and 1,298.72

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Solution

The fourth proportional to 3,765.44, 5,643.84 and 1,298.72 is: 1,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.44 : 5,643.84 = 1,298.72 : x
  2. Step 2: Convert to fraction form
    3,765.44/5,643.84 = 1,298.72/x
  3. Step 3: Cross multiply
    3,765.44x = 5,643.84 × 1,298.72
  4. Step 4: Simplify right side
    3,765.44x = 7,329,767.88
  5. Step 5: Solve for x
    x = 7,329,767.88/3,765.44
  6. Step 6: Final answer
    x = 1,946.59

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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.