Home / 2,880,990.70-3,975,759-1,591,821.90

Finding the Fourth Proportional to 2,880,990.70, 3,975,759 and 1,591,821.90

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Solution

The fourth proportional to 2,880,990.70, 3,975,759 and 1,591,821.90 is: 2,196,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880,990.70 : 3,975,759 = 1,591,821.90 : x
  2. Step 2: Convert to fraction form
    2,880,990.70/3,975,759 = 1,591,821.90/x
  3. Step 3: Cross multiply
    2,880,990.70x = 3,975,759 × 1,591,821.90
  4. Step 4: Simplify right side
    2,880,990.70x = 6,328,700,245,322.10
  5. Step 5: Solve for x
    x = 6,328,700,245,322.10/2,880,990.70
  6. Step 6: Final answer
    x = 2,196,709.71

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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.