Home / 3,991,802.79-5,508,690.06-2,156,261.11

Finding the Fourth Proportional to 3,991,802.79, 5,508,690.06 and 2,156,261.11

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Solution

The fourth proportional to 3,991,802.79, 5,508,690.06 and 2,156,261.11 is: 2,975,641.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,802.79 : 5,508,690.06 = 2,156,261.11 : x
  2. Step 2: Convert to fraction form
    3,991,802.79/5,508,690.06 = 2,156,261.11/x
  3. Step 3: Cross multiply
    3,991,802.79x = 5,508,690.06 × 2,156,261.11
  4. Step 4: Simplify right side
    3,991,802.79x = 11,878,174,143,421.56
  5. Step 5: Solve for x
    x = 11,878,174,143,421.56/3,991,802.79
  6. Step 6: Final answer
    x = 2,975,641.53

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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.