Home / 2,107,159.61-2,907,168.41-1,371,779.03

Finding the Fourth Proportional to 2,107,159.61, 2,907,168.41 and 1,371,779.03

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Solution

The fourth proportional to 2,107,159.61, 2,907,168.41 and 1,371,779.03 is: 1,892,591.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107,159.61 : 2,907,168.41 = 1,371,779.03 : x
  2. Step 2: Convert to fraction form
    2,107,159.61/2,907,168.41 = 1,371,779.03/x
  3. Step 3: Cross multiply
    2,107,159.61x = 2,907,168.41 × 1,371,779.03
  4. Step 4: Simplify right side
    2,107,159.61x = 3,987,992,640,121.70
  5. Step 5: Solve for x
    x = 3,987,992,640,121.70/2,107,159.61
  6. Step 6: Final answer
    x = 1,892,591.63

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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.