Home / 2,897,085.64-3,998,713.08-1,979,686.12

Finding the Fourth Proportional to 2,897,085.64, 3,998,713.08 and 1,979,686.12

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Solution

The fourth proportional to 2,897,085.64, 3,998,713.08 and 1,979,686.12 is: 2,732,469.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897,085.64 : 3,998,713.08 = 1,979,686.12 : x
  2. Step 2: Convert to fraction form
    2,897,085.64/3,998,713.08 = 1,979,686.12/x
  3. Step 3: Cross multiply
    2,897,085.64x = 3,998,713.08 × 1,979,686.12
  4. Step 4: Simplify right side
    2,897,085.64x = 7,916,196,782,338.45
  5. Step 5: Solve for x
    x = 7,916,196,782,338.45/2,897,085.64
  6. Step 6: Final answer
    x = 2,732,469.03

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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.