Home / 3,868,637.21-5,338,767.72-2,126,496.80

Finding the Fourth Proportional to 3,868,637.21, 5,338,767.72 and 2,126,496.80

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Solution

The fourth proportional to 3,868,637.21, 5,338,767.72 and 2,126,496.80 is: 2,934,592.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868,637.21 : 5,338,767.72 = 2,126,496.80 : x
  2. Step 2: Convert to fraction form
    3,868,637.21/5,338,767.72 = 2,126,496.80/x
  3. Step 3: Cross multiply
    3,868,637.21x = 5,338,767.72 × 2,126,496.80
  4. Step 4: Simplify right side
    3,868,637.21x = 11,352,872,472,523.29
  5. Step 5: Solve for x
    x = 11,352,872,472,523.29/3,868,637.21
  6. Step 6: Final answer
    x = 2,934,592.17

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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.