Home / 3,847,297.86-5,309,427.34-2,128,388.76

Finding the Fourth Proportional to 3,847,297.86, 5,309,427.34 and 2,128,388.76

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Solution

The fourth proportional to 3,847,297.86, 5,309,427.34 and 2,128,388.76 is: 2,937,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847,297.86 : 5,309,427.34 = 2,128,388.76 : x
  2. Step 2: Convert to fraction form
    3,847,297.86/5,309,427.34 = 2,128,388.76/x
  3. Step 3: Cross multiply
    3,847,297.86x = 5,309,427.34 × 2,128,388.76
  4. Step 4: Simplify right side
    3,847,297.86x = 11,300,525,472,492.70
  5. Step 5: Solve for x
    x = 11,300,525,472,492.70/3,847,297.86
  6. Step 6: Final answer
    x = 2,937,262.95

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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.