Home / 5,234.60-7,851.90-1,946.80

Finding the Fourth Proportional to 5,234.60, 7,851.90 and 1,946.80

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Solution

The fourth proportional to 5,234.60, 7,851.90 and 1,946.80 is: 2,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,234.60 : 7,851.90 = 1,946.80 : x
  2. Step 2: Convert to fraction form
    5,234.60/7,851.90 = 1,946.80/x
  3. Step 3: Cross multiply
    5,234.60x = 7,851.90 × 1,946.80
  4. Step 4: Simplify right side
    5,234.60x = 15,286,078.92
  5. Step 5: Solve for x
    x = 15,286,078.92/5,234.60
  6. Step 6: Final answer
    x = 2,920.20

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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.