Home / 3,980,286.78-5,492,812.02-2,261,501.62

Finding the Fourth Proportional to 3,980,286.78, 5,492,812.02 and 2,261,501.62

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Solution

The fourth proportional to 3,980,286.78, 5,492,812.02 and 2,261,501.62 is: 3,120,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980,286.78 : 5,492,812.02 = 2,261,501.62 : x
  2. Step 2: Convert to fraction form
    3,980,286.78/5,492,812.02 = 2,261,501.62/x
  3. Step 3: Cross multiply
    3,980,286.78x = 5,492,812.02 × 2,261,501.62
  4. Step 4: Simplify right side
    3,980,286.78x = 12,422,003,281,585.47
  5. Step 5: Solve for x
    x = 12,422,003,281,585.47/3,980,286.78
  6. Step 6: Final answer
    x = 3,120,881.48

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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.