Home / 3,280,831.68-4,529,786.40-2,122,086.72

Finding the Fourth Proportional to 3,280,831.68, 4,529,786.40 and 2,122,086.72

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Solution

The fourth proportional to 3,280,831.68, 4,529,786.40 and 2,122,086.72 is: 2,929,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,831.68 : 4,529,786.40 = 2,122,086.72 : x
  2. Step 2: Convert to fraction form
    3,280,831.68/4,529,786.40 = 2,122,086.72/x
  3. Step 3: Cross multiply
    3,280,831.68x = 4,529,786.40 × 2,122,086.72
  4. Step 4: Simplify right side
    3,280,831.68x = 9,612,599,563,876.61
  5. Step 5: Solve for x
    x = 9,612,599,563,876.61/3,280,831.68
  6. Step 6: Final answer
    x = 2,929,927.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.