Home / 2,103.24-3,154.86-805.08

Finding the Fourth Proportional to 2,103.24, 3,154.86 and 805.08

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Solution

The fourth proportional to 2,103.24, 3,154.86 and 805.08 is: 1,207.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.24 : 3,154.86 = 805.08 : x
  2. Step 2: Convert to fraction form
    2,103.24/3,154.86 = 805.08/x
  3. Step 3: Cross multiply
    2,103.24x = 3,154.86 × 805.08
  4. Step 4: Simplify right side
    2,103.24x = 2,539,914.69
  5. Step 5: Solve for x
    x = 2,539,914.69/2,103.24
  6. Step 6: Final answer
    x = 1,207.62

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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.