Home / 3,929,948.90-5,423,273.93-2,211,065.32

Finding the Fourth Proportional to 3,929,948.90, 5,423,273.93 and 2,211,065.32

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Solution

The fourth proportional to 3,929,948.90, 5,423,273.93 and 2,211,065.32 is: 3,051,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,948.90 : 5,423,273.93 = 2,211,065.32 : x
  2. Step 2: Convert to fraction form
    3,929,948.90/5,423,273.93 = 2,211,065.32/x
  3. Step 3: Cross multiply
    3,929,948.90x = 5,423,273.93 × 2,211,065.32
  4. Step 4: Simplify right side
    3,929,948.90x = 11,991,212,869,311.41
  5. Step 5: Solve for x
    x = 11,991,212,869,311.41/3,929,948.90
  6. Step 6: Final answer
    x = 3,051,238.88

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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.