Home / 3,761,479.38-5,190,903.32-2,129,843.74

Finding the Fourth Proportional to 3,761,479.38, 5,190,903.32 and 2,129,843.74

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Solution

The fourth proportional to 3,761,479.38, 5,190,903.32 and 2,129,843.74 is: 2,939,219.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761,479.38 : 5,190,903.32 = 2,129,843.74 : x
  2. Step 2: Convert to fraction form
    3,761,479.38/5,190,903.32 = 2,129,843.74/x
  3. Step 3: Cross multiply
    3,761,479.38x = 5,190,903.32 × 2,129,843.74
  4. Step 4: Simplify right side
    3,761,479.38x = 11,055,812,941,047.22
  5. Step 5: Solve for x
    x = 11,055,812,941,047.22/3,761,479.38
  6. Step 6: Final answer
    x = 2,939,219.34

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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.