Home / 4,951.02-7,428.09-2,978.81

Finding the Fourth Proportional to 4,951.02, 7,428.09 and 2,978.81

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Solution

The fourth proportional to 4,951.02, 7,428.09 and 2,978.81 is: 4,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.02 : 7,428.09 = 2,978.81 : x
  2. Step 2: Convert to fraction form
    4,951.02/7,428.09 = 2,978.81/x
  3. Step 3: Cross multiply
    4,951.02x = 7,428.09 × 2,978.81
  4. Step 4: Simplify right side
    4,951.02x = 22,126,831.63
  5. Step 5: Solve for x
    x = 22,126,831.63/4,951.02
  6. Step 6: Final answer
    x = 4,469.15

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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.