Home / 3,840,415.48-5,299,741.74-2,121,499.90

Finding the Fourth Proportional to 3,840,415.48, 5,299,741.74 and 2,121,499.90

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Solution

The fourth proportional to 3,840,415.48, 5,299,741.74 and 2,121,499.90 is: 2,927,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840,415.48 : 5,299,741.74 = 2,121,499.90 : x
  2. Step 2: Convert to fraction form
    3,840,415.48/5,299,741.74 = 2,121,499.90/x
  3. Step 3: Cross multiply
    3,840,415.48x = 5,299,741.74 × 2,121,499.90
  4. Step 4: Simplify right side
    3,840,415.48x = 11,243,401,571,435.83
  5. Step 5: Solve for x
    x = 11,243,401,571,435.83/3,840,415.48
  6. Step 6: Final answer
    x = 2,927,652.39

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1.5x scale

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.