Home / 5,083.80-7,632.90-3,139.80

Finding the Fourth Proportional to 5,083.80, 7,632.90 and 3,139.80

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Solution

The fourth proportional to 5,083.80, 7,632.90 and 3,139.80 is: 4,714.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.80 : 7,632.90 = 3,139.80 : x
  2. Step 2: Convert to fraction form
    5,083.80/7,632.90 = 3,139.80/x
  3. Step 3: Cross multiply
    5,083.80x = 7,632.90 × 3,139.80
  4. Step 4: Simplify right side
    5,083.80x = 23,965,779.42
  5. Step 5: Solve for x
    x = 23,965,779.42/5,083.80
  6. Step 6: Final answer
    x = 4,714.15

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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.