Home / 3,939,588-5,436,631.44-2,128,752

Finding the Fourth Proportional to 3,939,588, 5,436,631.44 and 2,128,752

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Solution

The fourth proportional to 3,939,588, 5,436,631.44 and 2,128,752 is: 2,937,677.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,588 : 5,436,631.44 = 2,128,752 : x
  2. Step 2: Convert to fraction form
    3,939,588/5,436,631.44 = 2,128,752/x
  3. Step 3: Cross multiply
    3,939,588x = 5,436,631.44 × 2,128,752
  4. Step 4: Simplify right side
    3,939,588x = 11,573,240,051,162.88
  5. Step 5: Solve for x
    x = 11,573,240,051,162.88/3,939,588
  6. Step 6: Final answer
    x = 2,937,677.76

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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.