Home / 4,763.30-7,146.99-1,990.60

Finding the Fourth Proportional to 4,763.30, 7,146.99 and 1,990.60

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Solution

The fourth proportional to 4,763.30, 7,146.99 and 1,990.60 is: 2,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,763.30 : 7,146.99 = 1,990.60 : x
  2. Step 2: Convert to fraction form
    4,763.30/7,146.99 = 1,990.60/x
  3. Step 3: Cross multiply
    4,763.30x = 7,146.99 × 1,990.60
  4. Step 4: Simplify right side
    4,763.30x = 14,226,780.43
  5. Step 5: Solve for x
    x = 14,226,780.43/4,763.30
  6. Step 6: Final answer
    x = 2,986.75

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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.