Home / 3,902,915.74-5,386,087.49-2,136,784.59

Finding the Fourth Proportional to 3,902,915.74, 5,386,087.49 and 2,136,784.59

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Solution

The fourth proportional to 3,902,915.74, 5,386,087.49 and 2,136,784.59 is: 2,948,797.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902,915.74 : 5,386,087.49 = 2,136,784.59 : x
  2. Step 2: Convert to fraction form
    3,902,915.74/5,386,087.49 = 2,136,784.59/x
  3. Step 3: Cross multiply
    3,902,915.74x = 5,386,087.49 × 2,136,784.59
  4. Step 4: Simplify right side
    3,902,915.74x = 11,508,908,722,093.34
  5. Step 5: Solve for x
    x = 11,508,908,722,093.34/3,902,915.74
  6. Step 6: Final answer
    x = 2,948,797.64

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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.