Home / 5,029.16-6,939.90-2,790.96

Finding the Fourth Proportional to 5,029.16, 6,939.90 and 2,790.96

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Solution

The fourth proportional to 5,029.16, 6,939.90 and 2,790.96 is: 3,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,029.16 : 6,939.90 = 2,790.96 : x
  2. Step 2: Convert to fraction form
    5,029.16/6,939.90 = 2,790.96/x
  3. Step 3: Cross multiply
    5,029.16x = 6,939.90 × 2,790.96
  4. Step 4: Simplify right side
    5,029.16x = 19,368,983.30
  5. Step 5: Solve for x
    x = 19,368,983.30/5,029.16
  6. Step 6: Final answer
    x = 3,851.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.