Home / 2,128.98-2,937.87-1,184.73

Finding the Fourth Proportional to 2,128.98, 2,937.87 and 1,184.73

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Solution

The fourth proportional to 2,128.98, 2,937.87 and 1,184.73 is: 1,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.98 : 2,937.87 = 1,184.73 : x
  2. Step 2: Convert to fraction form
    2,128.98/2,937.87 = 1,184.73/x
  3. Step 3: Cross multiply
    2,128.98x = 2,937.87 × 1,184.73
  4. Step 4: Simplify right side
    2,128.98x = 3,480,571.71
  5. Step 5: Solve for x
    x = 3,480,571.71/2,128.98
  6. Step 6: Final answer
    x = 1,634.85

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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.