Home / 3,701.54-5,108.60-2,129.64

Finding the Fourth Proportional to 3,701.54, 5,108.60 and 2,129.64

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Solution

The fourth proportional to 3,701.54, 5,108.60 and 2,129.64 is: 2,939.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.54 : 5,108.60 = 2,129.64 : x
  2. Step 2: Convert to fraction form
    3,701.54/5,108.60 = 2,129.64/x
  3. Step 3: Cross multiply
    3,701.54x = 5,108.60 × 2,129.64
  4. Step 4: Simplify right side
    3,701.54x = 10,879,465.07
  5. Step 5: Solve for x
    x = 10,879,465.07/3,701.54
  6. Step 6: Final answer
    x = 2,939.17

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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.