Home / 3,125.36-4,689.11-1,178.12

Finding the Fourth Proportional to 3,125.36, 4,689.11 and 1,178.12

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Solution

The fourth proportional to 3,125.36, 4,689.11 and 1,178.12 is: 1,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.36 : 4,689.11 = 1,178.12 : x
  2. Step 2: Convert to fraction form
    3,125.36/4,689.11 = 1,178.12/x
  3. Step 3: Cross multiply
    3,125.36x = 4,689.11 × 1,178.12
  4. Step 4: Simplify right side
    3,125.36x = 5,524,313.77
  5. Step 5: Solve for x
    x = 5,524,313.77/3,125.36
  6. Step 6: Final answer
    x = 1,767.58

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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.