Home / 2,739,112.80-3,780,087.04-1,515,397.20

Finding the Fourth Proportional to 2,739,112.80, 3,780,087.04 and 1,515,397.20

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Solution

The fourth proportional to 2,739,112.80, 3,780,087.04 and 1,515,397.20 is: 2,091,309.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739,112.80 : 3,780,087.04 = 1,515,397.20 : x
  2. Step 2: Convert to fraction form
    2,739,112.80/3,780,087.04 = 1,515,397.20/x
  3. Step 3: Cross multiply
    2,739,112.80x = 3,780,087.04 × 1,515,397.20
  4. Step 4: Simplify right side
    2,739,112.80x = 5,728,333,316,172.29
  5. Step 5: Solve for x
    x = 5,728,333,316,172.29/2,739,112.80
  6. Step 6: Final answer
    x = 2,091,309.75

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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.