Home / 4,621.90-6,928.08-2,154.70

Finding the Fourth Proportional to 4,621.90, 6,928.08 and 2,154.70

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Solution

The fourth proportional to 4,621.90, 6,928.08 and 2,154.70 is: 3,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.90 : 6,928.08 = 2,154.70 : x
  2. Step 2: Convert to fraction form
    4,621.90/6,928.08 = 2,154.70/x
  3. Step 3: Cross multiply
    4,621.90x = 6,928.08 × 2,154.70
  4. Step 4: Simplify right side
    4,621.90x = 14,927,933.98
  5. Step 5: Solve for x
    x = 14,927,933.98/4,621.90
  6. Step 6: Final answer
    x = 3,229.83

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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.