Home / 4,989.09-7,482.78-1,479.06

Finding the Fourth Proportional to 4,989.09, 7,482.78 and 1,479.06

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Solution

The fourth proportional to 4,989.09, 7,482.78 and 1,479.06 is: 2,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.09 : 7,482.78 = 1,479.06 : x
  2. Step 2: Convert to fraction form
    4,989.09/7,482.78 = 1,479.06/x
  3. Step 3: Cross multiply
    4,989.09x = 7,482.78 × 1,479.06
  4. Step 4: Simplify right side
    4,989.09x = 11,067,480.59
  5. Step 5: Solve for x
    x = 11,067,480.59/4,989.09
  6. Step 6: Final answer
    x = 2,218.33

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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.