Home / 3,130.24-4,695.72-1,831.72

Finding the Fourth Proportional to 3,130.24, 4,695.72 and 1,831.72

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Solution

The fourth proportional to 3,130.24, 4,695.72 and 1,831.72 is: 2,747.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.24 : 4,695.72 = 1,831.72 : x
  2. Step 2: Convert to fraction form
    3,130.24/4,695.72 = 1,831.72/x
  3. Step 3: Cross multiply
    3,130.24x = 4,695.72 × 1,831.72
  4. Step 4: Simplify right side
    3,130.24x = 8,601,244.24
  5. Step 5: Solve for x
    x = 8,601,244.24/3,130.24
  6. Step 6: Final answer
    x = 2,747.79

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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.