Home / 3,917,145.28-5,401,903.78-2,520,281.21

Finding the Fourth Proportional to 3,917,145.28, 5,401,903.78 and 2,520,281.21

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Solution

The fourth proportional to 3,917,145.28, 5,401,903.78 and 2,520,281.21 is: 3,475,571.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917,145.28 : 5,401,903.78 = 2,520,281.21 : x
  2. Step 2: Convert to fraction form
    3,917,145.28/5,401,903.78 = 2,520,281.21/x
  3. Step 3: Cross multiply
    3,917,145.28x = 5,401,903.78 × 2,520,281.21
  4. Step 4: Simplify right side
    3,917,145.28x = 13,614,316,599,803.27
  5. Step 5: Solve for x
    x = 13,614,316,599,803.27/3,917,145.28
  6. Step 6: Final answer
    x = 3,475,571.02

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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.