Home / 3,009.80-4,513.08-1,253.72

Finding the Fourth Proportional to 3,009.80, 4,513.08 and 1,253.72

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Solution

The fourth proportional to 3,009.80, 4,513.08 and 1,253.72 is: 1,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.80 : 4,513.08 = 1,253.72 : x
  2. Step 2: Convert to fraction form
    3,009.80/4,513.08 = 1,253.72/x
  3. Step 3: Cross multiply
    3,009.80x = 4,513.08 × 1,253.72
  4. Step 4: Simplify right side
    3,009.80x = 5,658,138.66
  5. Step 5: Solve for x
    x = 5,658,138.66/3,009.80
  6. Step 6: Final answer
    x = 1,879.91

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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.