Home / 4,429.20-6,643.92-1,831.50

Finding the Fourth Proportional to 4,429.20, 6,643.92 and 1,831.50

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Solution

The fourth proportional to 4,429.20, 6,643.92 and 1,831.50 is: 2,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.20 : 6,643.92 = 1,831.50 : x
  2. Step 2: Convert to fraction form
    4,429.20/6,643.92 = 1,831.50/x
  3. Step 3: Cross multiply
    4,429.20x = 6,643.92 × 1,831.50
  4. Step 4: Simplify right side
    4,429.20x = 12,168,339.48
  5. Step 5: Solve for x
    x = 12,168,339.48/4,429.20
  6. Step 6: Final answer
    x = 2,747.30

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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.