Home / 2,126,871.62-2,934,578.02-1,209,028.22

Finding the Fourth Proportional to 2,126,871.62, 2,934,578.02 and 1,209,028.22

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Solution

The fourth proportional to 2,126,871.62, 2,934,578.02 and 1,209,028.22 is: 1,668,171.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,871.62 : 2,934,578.02 = 1,209,028.22 : x
  2. Step 2: Convert to fraction form
    2,126,871.62/2,934,578.02 = 1,209,028.22/x
  3. Step 3: Cross multiply
    2,126,871.62x = 2,934,578.02 × 1,209,028.22
  4. Step 4: Simplify right side
    2,126,871.62x = 3,547,987,639,971.72
  5. Step 5: Solve for x
    x = 3,547,987,639,971.72/2,126,871.62
  6. Step 6: Final answer
    x = 1,668,171.98

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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.