Home / 2,160,732.26-2,981,554.72-1,289,405.49

Finding the Fourth Proportional to 2,160,732.26, 2,981,554.72 and 1,289,405.49

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Solution

The fourth proportional to 2,160,732.26, 2,981,554.72 and 1,289,405.49 is: 1,779,226.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,732.26 : 2,981,554.72 = 1,289,405.49 : x
  2. Step 2: Convert to fraction form
    2,160,732.26/2,981,554.72 = 1,289,405.49/x
  3. Step 3: Cross multiply
    2,160,732.26x = 2,981,554.72 × 1,289,405.49
  4. Step 4: Simplify right side
    2,160,732.26x = 3,844,433,010,299.07
  5. Step 5: Solve for x
    x = 3,844,433,010,299.07/2,160,732.26
  6. Step 6: Final answer
    x = 1,779,226.93

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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.