Home / 3,855,179.69-5,320,179.67-2,136,328.91

Finding the Fourth Proportional to 3,855,179.69, 5,320,179.67 and 2,136,328.91

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Solution

The fourth proportional to 3,855,179.69, 5,320,179.67 and 2,136,328.91 is: 2,948,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,179.69 : 5,320,179.67 = 2,136,328.91 : x
  2. Step 2: Convert to fraction form
    3,855,179.69/5,320,179.67 = 2,136,328.91/x
  3. Step 3: Cross multiply
    3,855,179.69x = 5,320,179.67 × 2,136,328.91
  4. Step 4: Simplify right side
    3,855,179.69x = 11,365,653,635,415.26
  5. Step 5: Solve for x
    x = 11,365,653,635,415.26/3,855,179.69
  6. Step 6: Final answer
    x = 2,948,151.46

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Double scale
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1.5x scale

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.