Home / 2,649,311.40-3,969,884.70-1,972,216.20

Finding the Fourth Proportional to 2,649,311.40, 3,969,884.70 and 1,972,216.20

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Solution

The fourth proportional to 2,649,311.40, 3,969,884.70 and 1,972,216.20 is: 2,955,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649,311.40 : 3,969,884.70 = 1,972,216.20 : x
  2. Step 2: Convert to fraction form
    2,649,311.40/3,969,884.70 = 1,972,216.20/x
  3. Step 3: Cross multiply
    2,649,311.40x = 3,969,884.70 × 1,972,216.20
  4. Step 4: Simplify right side
    2,649,311.40x = 7,829,470,917,472.14
  5. Step 5: Solve for x
    x = 7,829,470,917,472.14/2,649,311.40
  6. Step 6: Final answer
    x = 2,955,285.26

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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.