Home / 3,701.58-5,108.32-2,129.66

Finding the Fourth Proportional to 3,701.58, 5,108.32 and 2,129.66

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Solution

The fourth proportional to 3,701.58, 5,108.32 and 2,129.66 is: 2,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.58 : 5,108.32 = 2,129.66 : x
  2. Step 2: Convert to fraction form
    3,701.58/5,108.32 = 2,129.66/x
  3. Step 3: Cross multiply
    3,701.58x = 5,108.32 × 2,129.66
  4. Step 4: Simplify right side
    3,701.58x = 10,878,984.77
  5. Step 5: Solve for x
    x = 10,878,984.77/3,701.58
  6. Step 6: Final answer
    x = 2,939.01

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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.