Home / 3,565.80-5,346.30-1,900.20

Finding the Fourth Proportional to 3,565.80, 5,346.30 and 1,900.20

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Solution

The fourth proportional to 3,565.80, 5,346.30 and 1,900.20 is: 2,849.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.80 : 5,346.30 = 1,900.20 : x
  2. Step 2: Convert to fraction form
    3,565.80/5,346.30 = 1,900.20/x
  3. Step 3: Cross multiply
    3,565.80x = 5,346.30 × 1,900.20
  4. Step 4: Simplify right side
    3,565.80x = 10,159,039.26
  5. Step 5: Solve for x
    x = 10,159,039.26/3,565.80
  6. Step 6: Final answer
    x = 2,849.02

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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.