Home / 3,110.72-4,665.28-1,571.36

Finding the Fourth Proportional to 3,110.72, 4,665.28 and 1,571.36

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Solution

The fourth proportional to 3,110.72, 4,665.28 and 1,571.36 is: 2,356.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.72 : 4,665.28 = 1,571.36 : x
  2. Step 2: Convert to fraction form
    3,110.72/4,665.28 = 1,571.36/x
  3. Step 3: Cross multiply
    3,110.72x = 4,665.28 × 1,571.36
  4. Step 4: Simplify right side
    3,110.72x = 7,330,834.38
  5. Step 5: Solve for x
    x = 7,330,834.38/3,110.72
  6. Step 6: Final answer
    x = 2,356.64

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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.