Home / 2,147,971.38-2,963,462.87-1,331,881.40

Finding the Fourth Proportional to 2,147,971.38, 2,963,462.87 and 1,331,881.40

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Solution

The fourth proportional to 2,147,971.38, 2,963,462.87 and 1,331,881.40 is: 1,837,538.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,971.38 : 2,963,462.87 = 1,331,881.40 : x
  2. Step 2: Convert to fraction form
    2,147,971.38/2,963,462.87 = 1,331,881.40/x
  3. Step 3: Cross multiply
    2,147,971.38x = 2,963,462.87 × 1,331,881.40
  4. Step 4: Simplify right side
    2,147,971.38x = 3,946,981,076,143.62
  5. Step 5: Solve for x
    x = 3,946,981,076,143.62/2,147,971.38
  6. Step 6: Final answer
    x = 1,837,538.95

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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.