Home / 2,128.14-2,937.06-1,342.44

Finding the Fourth Proportional to 2,128.14, 2,937.06 and 1,342.44

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Solution

The fourth proportional to 2,128.14, 2,937.06 and 1,342.44 is: 1,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.14 : 2,937.06 = 1,342.44 : x
  2. Step 2: Convert to fraction form
    2,128.14/2,937.06 = 1,342.44/x
  3. Step 3: Cross multiply
    2,128.14x = 2,937.06 × 1,342.44
  4. Step 4: Simplify right side
    2,128.14x = 3,942,826.83
  5. Step 5: Solve for x
    x = 3,942,826.83/2,128.14
  6. Step 6: Final answer
    x = 1,852.71

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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.