Home / 3,914.74-5,859.63-2,178.10

Finding the Fourth Proportional to 3,914.74, 5,859.63 and 2,178.10

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Solution

The fourth proportional to 3,914.74, 5,859.63 and 2,178.10 is: 3,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.74 : 5,859.63 = 2,178.10 : x
  2. Step 2: Convert to fraction form
    3,914.74/5,859.63 = 2,178.10/x
  3. Step 3: Cross multiply
    3,914.74x = 5,859.63 × 2,178.10
  4. Step 4: Simplify right side
    3,914.74x = 12,762,860.10
  5. Step 5: Solve for x
    x = 12,762,860.10/3,914.74
  6. Step 6: Final answer
    x = 3,260.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.