Home / 4,428.12-6,642.20-1,831.14

Finding the Fourth Proportional to 4,428.12, 6,642.20 and 1,831.14

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Solution

The fourth proportional to 4,428.12, 6,642.20 and 1,831.14 is: 2,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.12 : 6,642.20 = 1,831.14 : x
  2. Step 2: Convert to fraction form
    4,428.12/6,642.20 = 1,831.14/x
  3. Step 3: Cross multiply
    4,428.12x = 6,642.20 × 1,831.14
  4. Step 4: Simplify right side
    4,428.12x = 12,162,798.11
  5. Step 5: Solve for x
    x = 12,162,798.11/4,428.12
  6. Step 6: Final answer
    x = 2,746.72

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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.