Home / 3,880,450.72-5,355,187.68-2,161,572.40

Finding the Fourth Proportional to 3,880,450.72, 5,355,187.68 and 2,161,572.40

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Solution

The fourth proportional to 3,880,450.72, 5,355,187.68 and 2,161,572.40 is: 2,983,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880,450.72 : 5,355,187.68 = 2,161,572.40 : x
  2. Step 2: Convert to fraction form
    3,880,450.72/5,355,187.68 = 2,161,572.40/x
  3. Step 3: Cross multiply
    3,880,450.72x = 5,355,187.68 × 2,161,572.40
  4. Step 4: Simplify right side
    3,880,450.72x = 11,575,625,885,908.03
  5. Step 5: Solve for x
    x = 11,575,625,885,908.03/3,880,450.72
  6. Step 6: Final answer
    x = 2,983,062.21

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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.