Home / 3,880,535.88-5,355,305.10-2,161,657.56

Finding the Fourth Proportional to 3,880,535.88, 5,355,305.10 and 2,161,657.56

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Solution

The fourth proportional to 3,880,535.88, 5,355,305.10 and 2,161,657.56 is: 2,983,179.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880,535.88 : 5,355,305.10 = 2,161,657.56 : x
  2. Step 2: Convert to fraction form
    3,880,535.88/5,355,305.10 = 2,161,657.56/x
  3. Step 3: Cross multiply
    3,880,535.88x = 5,355,305.10 × 2,161,657.56
  4. Step 4: Simplify right side
    3,880,535.88x = 11,576,335,755,521.55
  5. Step 5: Solve for x
    x = 11,576,335,755,521.55/3,880,535.88
  6. Step 6: Final answer
    x = 2,983,179.67

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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.