Home / 3,931,309.70-5,424,309.72-2,211,802.82

Finding the Fourth Proportional to 3,931,309.70, 5,424,309.72 and 2,211,802.82

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Solution

The fourth proportional to 3,931,309.70, 5,424,309.72 and 2,211,802.82 is: 3,051,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931,309.70 : 5,424,309.72 = 2,211,802.82 : x
  2. Step 2: Convert to fraction form
    3,931,309.70/5,424,309.72 = 2,211,802.82/x
  3. Step 3: Cross multiply
    3,931,309.70x = 5,424,309.72 × 2,211,802.82
  4. Step 4: Simplify right side
    3,931,309.70x = 11,997,503,535,249.41
  5. Step 5: Solve for x
    x = 11,997,503,535,249.41/3,931,309.70
  6. Step 6: Final answer
    x = 3,051,782.85

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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.