Home / 3,074.03-4,609.13-1,320.15

Finding the Fourth Proportional to 3,074.03, 4,609.13 and 1,320.15

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Solution

The fourth proportional to 3,074.03, 4,609.13 and 1,320.15 is: 1,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.03 : 4,609.13 = 1,320.15 : x
  2. Step 2: Convert to fraction form
    3,074.03/4,609.13 = 1,320.15/x
  3. Step 3: Cross multiply
    3,074.03x = 4,609.13 × 1,320.15
  4. Step 4: Simplify right side
    3,074.03x = 6,084,736.37
  5. Step 5: Solve for x
    x = 6,084,736.37/3,074.03
  6. Step 6: Final answer
    x = 1,979.40

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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.