Home / 3,172,138.59-4,377,554.65-1,721,833.80

Finding the Fourth Proportional to 3,172,138.59, 4,377,554.65 and 1,721,833.80

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Solution

The fourth proportional to 3,172,138.59, 4,377,554.65 and 1,721,833.80 is: 2,376,132.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172,138.59 : 4,377,554.65 = 1,721,833.80 : x
  2. Step 2: Convert to fraction form
    3,172,138.59/4,377,554.65 = 1,721,833.80/x
  3. Step 3: Cross multiply
    3,172,138.59x = 4,377,554.65 × 1,721,833.80
  4. Step 4: Simplify right side
    3,172,138.59x = 7,537,421,557,717.17
  5. Step 5: Solve for x
    x = 7,537,421,557,717.17/3,172,138.59
  6. Step 6: Final answer
    x = 2,376,132.49

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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.