Home / 3,180.10-4,772.01-1,331.06

Finding the Fourth Proportional to 3,180.10, 4,772.01 and 1,331.06

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Solution

The fourth proportional to 3,180.10, 4,772.01 and 1,331.06 is: 1,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.10 : 4,772.01 = 1,331.06 : x
  2. Step 2: Convert to fraction form
    3,180.10/4,772.01 = 1,331.06/x
  3. Step 3: Cross multiply
    3,180.10x = 4,772.01 × 1,331.06
  4. Step 4: Simplify right side
    3,180.10x = 6,351,831.63
  5. Step 5: Solve for x
    x = 6,351,831.63/3,180.10
  6. Step 6: Final answer
    x = 1,997.37

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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.