Home / 6,211.10-8,571.51-3,378.68

Finding the Fourth Proportional to 6,211.10, 8,571.51 and 3,378.68

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Solution

The fourth proportional to 6,211.10, 8,571.51 and 3,378.68 is: 4,662.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.10 : 8,571.51 = 3,378.68 : x
  2. Step 2: Convert to fraction form
    6,211.10/8,571.51 = 3,378.68/x
  3. Step 3: Cross multiply
    6,211.10x = 8,571.51 × 3,378.68
  4. Step 4: Simplify right side
    6,211.10x = 28,960,389.41
  5. Step 5: Solve for x
    x = 28,960,389.41/6,211.10
  6. Step 6: Final answer
    x = 4,662.68

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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.