Home / 3,700.22-5,106.08-2,128.32

Finding the Fourth Proportional to 3,700.22, 5,106.08 and 2,128.32

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Solution

The fourth proportional to 3,700.22, 5,106.08 and 2,128.32 is: 2,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,700.22 : 5,106.08 = 2,128.32 : x
  2. Step 2: Convert to fraction form
    3,700.22/5,106.08 = 2,128.32/x
  3. Step 3: Cross multiply
    3,700.22x = 5,106.08 × 2,128.32
  4. Step 4: Simplify right side
    3,700.22x = 10,867,372.19
  5. Step 5: Solve for x
    x = 10,867,372.19/3,700.22
  6. Step 6: Final answer
    x = 2,936.95

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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.