Home / 3,890,811.84-5,369,405.40-2,148,477.36

Finding the Fourth Proportional to 3,890,811.84, 5,369,405.40 and 2,148,477.36

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Solution

The fourth proportional to 3,890,811.84, 5,369,405.40 and 2,148,477.36 is: 2,964,945.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890,811.84 : 5,369,405.40 = 2,148,477.36 : x
  2. Step 2: Convert to fraction form
    3,890,811.84/5,369,405.40 = 2,148,477.36/x
  3. Step 3: Cross multiply
    3,890,811.84x = 5,369,405.40 × 2,148,477.36
  4. Step 4: Simplify right side
    3,890,811.84x = 11,536,045,938,561.74
  5. Step 5: Solve for x
    x = 11,536,045,938,561.74/3,890,811.84
  6. Step 6: Final answer
    x = 2,964,945.73

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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.