Home / 2,123,977.76-2,930,987.06-1,206,085.66

Finding the Fourth Proportional to 2,123,977.76, 2,930,987.06 and 1,206,085.66

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Solution

The fourth proportional to 2,123,977.76, 2,930,987.06 and 1,206,085.66 is: 1,664,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,123,977.76 : 2,930,987.06 = 1,206,085.66 : x
  2. Step 2: Convert to fraction form
    2,123,977.76/2,930,987.06 = 1,206,085.66/x
  3. Step 3: Cross multiply
    2,123,977.76x = 2,930,987.06 × 1,206,085.66
  4. Step 4: Simplify right side
    2,123,977.76x = 3,535,021,453,876.48
  5. Step 5: Solve for x
    x = 3,535,021,453,876.48/2,123,977.76
  6. Step 6: Final answer
    x = 1,664,340.15

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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.