Home / 3,009.12-4,512.96-2,715.36

Finding the Fourth Proportional to 3,009.12, 4,512.96 and 2,715.36

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Solution

The fourth proportional to 3,009.12, 4,512.96 and 2,715.36 is: 4,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.12 : 4,512.96 = 2,715.36 : x
  2. Step 2: Convert to fraction form
    3,009.12/4,512.96 = 2,715.36/x
  3. Step 3: Cross multiply
    3,009.12x = 4,512.96 × 2,715.36
  4. Step 4: Simplify right side
    3,009.12x = 12,254,311.07
  5. Step 5: Solve for x
    x = 12,254,311.07/3,009.12
  6. Step 6: Final answer
    x = 4,072.39

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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.