Home / 2,889,592.35-3,990,317.90-2,163,178.95

Finding the Fourth Proportional to 2,889,592.35, 3,990,317.90 and 2,163,178.95

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Solution

The fourth proportional to 2,889,592.35, 3,990,317.90 and 2,163,178.95 is: 2,987,193.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889,592.35 : 3,990,317.90 = 2,163,178.95 : x
  2. Step 2: Convert to fraction form
    2,889,592.35/3,990,317.90 = 2,163,178.95/x
  3. Step 3: Cross multiply
    2,889,592.35x = 3,990,317.90 × 2,163,178.95
  4. Step 4: Simplify right side
    2,889,592.35x = 8,631,771,674,272.31
  5. Step 5: Solve for x
    x = 8,631,771,674,272.31/2,889,592.35
  6. Step 6: Final answer
    x = 2,987,193.57

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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.