Home / 5,091.86-7,027.20-2,939.10

Finding the Fourth Proportional to 5,091.86, 7,027.20 and 2,939.10

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Solution

The fourth proportional to 5,091.86, 7,027.20 and 2,939.10 is: 4,056.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.86 : 7,027.20 = 2,939.10 : x
  2. Step 2: Convert to fraction form
    5,091.86/7,027.20 = 2,939.10/x
  3. Step 3: Cross multiply
    5,091.86x = 7,027.20 × 2,939.10
  4. Step 4: Simplify right side
    5,091.86x = 20,653,643.52
  5. Step 5: Solve for x
    x = 20,653,643.52/5,091.86
  6. Step 6: Final answer
    x = 4,056.21

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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.