Home / 2,742,678.93-3,781,379.93-2,129,791.89

Finding the Fourth Proportional to 2,742,678.93, 3,781,379.93 and 2,129,791.89

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Solution

The fourth proportional to 2,742,678.93, 3,781,379.93 and 2,129,791.89 is: 2,936,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742,678.93 : 3,781,379.93 = 2,129,791.89 : x
  2. Step 2: Convert to fraction form
    2,742,678.93/3,781,379.93 = 2,129,791.89/x
  3. Step 3: Cross multiply
    2,742,678.93x = 3,781,379.93 × 2,129,791.89
  4. Step 4: Simplify right side
    2,742,678.93x = 8,053,552,297,273.81
  5. Step 5: Solve for x
    x = 8,053,552,297,273.81/2,742,678.93
  6. Step 6: Final answer
    x = 2,936,381.73

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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.