Home / 2,175,171.90-3,001,653.75-1,208,363.05

Finding the Fourth Proportional to 2,175,171.90, 3,001,653.75 and 1,208,363.05

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Solution

The fourth proportional to 2,175,171.90, 3,001,653.75 and 1,208,363.05 is: 1,667,494.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175,171.90 : 3,001,653.75 = 1,208,363.05 : x
  2. Step 2: Convert to fraction form
    2,175,171.90/3,001,653.75 = 1,208,363.05/x
  3. Step 3: Cross multiply
    2,175,171.90x = 3,001,653.75 × 1,208,363.05
  4. Step 4: Simplify right side
    2,175,171.90x = 3,627,087,480,393.94
  5. Step 5: Solve for x
    x = 3,627,087,480,393.94/2,175,171.90
  6. Step 6: Final answer
    x = 1,667,494.64

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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.