Home / 4,621.81-6,929.88-2,157.16

Finding the Fourth Proportional to 4,621.81, 6,929.88 and 2,157.16

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Solution

The fourth proportional to 4,621.81, 6,929.88 and 2,157.16 is: 3,234.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.81 : 6,929.88 = 2,157.16 : x
  2. Step 2: Convert to fraction form
    4,621.81/6,929.88 = 2,157.16/x
  3. Step 3: Cross multiply
    4,621.81x = 6,929.88 × 2,157.16
  4. Step 4: Simplify right side
    4,621.81x = 14,948,859.94
  5. Step 5: Solve for x
    x = 14,948,859.94/4,621.81
  6. Step 6: Final answer
    x = 3,234.42

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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.