Home / 2,172,133.94-2,997,565.49-1,205,354.18

Finding the Fourth Proportional to 2,172,133.94, 2,997,565.49 and 1,205,354.18

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Solution

The fourth proportional to 2,172,133.94, 2,997,565.49 and 1,205,354.18 is: 1,663,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,133.94 : 2,997,565.49 = 1,205,354.18 : x
  2. Step 2: Convert to fraction form
    2,172,133.94/2,997,565.49 = 1,205,354.18/x
  3. Step 3: Cross multiply
    2,172,133.94x = 2,997,565.49 × 1,205,354.18
  4. Step 4: Simplify right side
    2,172,133.94x = 3,613,128,103,702.55
  5. Step 5: Solve for x
    x = 3,613,128,103,702.55/2,172,133.94
  6. Step 6: Final answer
    x = 1,663,400.24

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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.