Home / 4,639.86-6,401.97-2,649.78

Finding the Fourth Proportional to 4,639.86, 6,401.97 and 2,649.78

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Solution

The fourth proportional to 4,639.86, 6,401.97 and 2,649.78 is: 3,656.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.86 : 6,401.97 = 2,649.78 : x
  2. Step 2: Convert to fraction form
    4,639.86/6,401.97 = 2,649.78/x
  3. Step 3: Cross multiply
    4,639.86x = 6,401.97 × 2,649.78
  4. Step 4: Simplify right side
    4,639.86x = 16,963,812.07
  5. Step 5: Solve for x
    x = 16,963,812.07/4,639.86
  6. Step 6: Final answer
    x = 3,656.10

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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.