Home / 3,723.12-5,137.96-2,130.10

Finding the Fourth Proportional to 3,723.12, 5,137.96 and 2,130.10

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Solution

The fourth proportional to 3,723.12, 5,137.96 and 2,130.10 is: 2,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.12 : 5,137.96 = 2,130.10 : x
  2. Step 2: Convert to fraction form
    3,723.12/5,137.96 = 2,130.10/x
  3. Step 3: Cross multiply
    3,723.12x = 5,137.96 × 2,130.10
  4. Step 4: Simplify right side
    3,723.12x = 10,944,368.60
  5. Step 5: Solve for x
    x = 10,944,368.60/3,723.12
  6. Step 6: Final answer
    x = 2,939.57

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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.