Home / 3,931,280.65-5,424,269.72-2,211,773.77

Finding the Fourth Proportional to 3,931,280.65, 5,424,269.72 and 2,211,773.77

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Solution

The fourth proportional to 3,931,280.65, 5,424,269.72 and 2,211,773.77 is: 3,051,742.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931,280.65 : 5,424,269.72 = 2,211,773.77 : x
  2. Step 2: Convert to fraction form
    3,931,280.65/5,424,269.72 = 2,211,773.77/x
  3. Step 3: Cross multiply
    3,931,280.65x = 5,424,269.72 × 2,211,773.77
  4. Step 4: Simplify right side
    3,931,280.65x = 11,997,257,463,481.70
  5. Step 5: Solve for x
    x = 11,997,257,463,481.70/3,931,280.65
  6. Step 6: Final answer
    x = 3,051,742.81

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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.