Home / 3,991,802.11-5,508,688.91-2,156,260.30

Finding the Fourth Proportional to 3,991,802.11, 5,508,688.91 and 2,156,260.30

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Solution

The fourth proportional to 3,991,802.11, 5,508,688.91 and 2,156,260.30 is: 2,975,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,802.11 : 5,508,688.91 = 2,156,260.30 : x
  2. Step 2: Convert to fraction form
    3,991,802.11/5,508,688.91 = 2,156,260.30/x
  3. Step 3: Cross multiply
    3,991,802.11x = 5,508,688.91 × 2,156,260.30
  4. Step 4: Simplify right side
    3,991,802.11x = 11,878,167,177,130.25
  5. Step 5: Solve for x
    x = 11,878,167,177,130.25/3,991,802.11
  6. Step 6: Final answer
    x = 2,975,640.29

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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.