Home / 3,931,291.78-5,424,285.06-2,211,784.90

Finding the Fourth Proportional to 3,931,291.78, 5,424,285.06 and 2,211,784.90

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Solution

The fourth proportional to 3,931,291.78, 5,424,285.06 and 2,211,784.90 is: 3,051,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931,291.78 : 5,424,285.06 = 2,211,784.90 : x
  2. Step 2: Convert to fraction form
    3,931,291.78/5,424,285.06 = 2,211,784.90/x
  3. Step 3: Cross multiply
    3,931,291.78x = 5,424,285.06 × 2,211,784.90
  4. Step 4: Simplify right side
    3,931,291.78x = 11,997,351,789,003.59
  5. Step 5: Solve for x
    x = 11,997,351,789,003.59/3,931,291.78
  6. Step 6: Final answer
    x = 3,051,758.17

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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.