Home / 2,171,702.09-2,997,308.64-1,205,142.86

Finding the Fourth Proportional to 2,171,702.09, 2,997,308.64 and 1,205,142.86

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Solution

The fourth proportional to 2,171,702.09, 2,997,308.64 and 1,205,142.86 is: 1,663,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,702.09 : 2,997,308.64 = 1,205,142.86 : x
  2. Step 2: Convert to fraction form
    2,171,702.09/2,997,308.64 = 1,205,142.86/x
  3. Step 3: Cross multiply
    2,171,702.09x = 2,997,308.64 × 1,205,142.86
  4. Step 4: Simplify right side
    2,171,702.09x = 3,612,185,106,712.31
  5. Step 5: Solve for x
    x = 3,612,185,106,712.31/2,171,702.09
  6. Step 6: Final answer
    x = 1,663,296.79

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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.