Home / 3,879,446.40-5,353,425.54-2,136,776.76

Finding the Fourth Proportional to 3,879,446.40, 5,353,425.54 and 2,136,776.76

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Solution

The fourth proportional to 3,879,446.40, 5,353,425.54 and 2,136,776.76 is: 2,948,635.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879,446.40 : 5,353,425.54 = 2,136,776.76 : x
  2. Step 2: Convert to fraction form
    3,879,446.40/5,353,425.54 = 2,136,776.76/x
  3. Step 3: Cross multiply
    3,879,446.40x = 5,353,425.54 × 2,136,776.76
  4. Step 4: Simplify right side
    3,879,446.40x = 11,439,075,280,262.45
  5. Step 5: Solve for x
    x = 11,439,075,280,262.45/3,879,446.40
  6. Step 6: Final answer
    x = 2,948,635.99

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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.