Home / 3,701.99-5,108.87-2,130.05

Finding the Fourth Proportional to 3,701.99, 5,108.87 and 2,130.05

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Solution

The fourth proportional to 3,701.99, 5,108.87 and 2,130.05 is: 2,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.99 : 5,108.87 = 2,130.05 : x
  2. Step 2: Convert to fraction form
    3,701.99/5,108.87 = 2,130.05/x
  3. Step 3: Cross multiply
    3,701.99x = 5,108.87 × 2,130.05
  4. Step 4: Simplify right side
    3,701.99x = 10,882,148.54
  5. Step 5: Solve for x
    x = 10,882,148.54/3,701.99
  6. Step 6: Final answer
    x = 2,939.54

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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.