Home / 2,897,091.90-3,998,721.72-1,979,692.38

Finding the Fourth Proportional to 2,897,091.90, 3,998,721.72 and 1,979,692.38

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Solution

The fourth proportional to 2,897,091.90, 3,998,721.72 and 1,979,692.38 is: 2,732,477.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897,091.90 : 3,998,721.72 = 1,979,692.38 : x
  2. Step 2: Convert to fraction form
    2,897,091.90/3,998,721.72 = 1,979,692.38/x
  3. Step 3: Cross multiply
    2,897,091.90x = 3,998,721.72 × 1,979,692.38
  4. Step 4: Simplify right side
    2,897,091.90x = 7,916,238,918,824.49
  5. Step 5: Solve for x
    x = 7,916,238,918,824.49/2,897,091.90
  6. Step 6: Final answer
    x = 2,732,477.67

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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.