Home / 6,210.90-8,571.21-3,378.45

Finding the Fourth Proportional to 6,210.90, 8,571.21 and 3,378.45

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Solution

The fourth proportional to 6,210.90, 8,571.21 and 3,378.45 is: 4,662.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,210.90 : 8,571.21 = 3,378.45 : x
  2. Step 2: Convert to fraction form
    6,210.90/8,571.21 = 3,378.45/x
  3. Step 3: Cross multiply
    6,210.90x = 8,571.21 × 3,378.45
  4. Step 4: Simplify right side
    6,210.90x = 28,957,404.42
  5. Step 5: Solve for x
    x = 28,957,404.42/6,210.90
  6. Step 6: Final answer
    x = 4,662.35

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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.