Home / 2,155,878.40-2,975,107.44-1,296,937.12

Finding the Fourth Proportional to 2,155,878.40, 2,975,107.44 and 1,296,937.12

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Solution

The fourth proportional to 2,155,878.40, 2,975,107.44 and 1,296,937.12 is: 1,789,770.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,878.40 : 2,975,107.44 = 1,296,937.12 : x
  2. Step 2: Convert to fraction form
    2,155,878.40/2,975,107.44 = 1,296,937.12/x
  3. Step 3: Cross multiply
    2,155,878.40x = 2,975,107.44 × 1,296,937.12
  4. Step 4: Simplify right side
    2,155,878.40x = 3,858,527,274,924.17
  5. Step 5: Solve for x
    x = 3,858,527,274,924.17/2,155,878.40
  6. Step 6: Final answer
    x = 1,789,770.37

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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.