Home / 2,127.95-2,936.55-1,183.70

Finding the Fourth Proportional to 2,127.95, 2,936.55 and 1,183.70

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Solution

The fourth proportional to 2,127.95, 2,936.55 and 1,183.70 is: 1,633.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.95 : 2,936.55 = 1,183.70 : x
  2. Step 2: Convert to fraction form
    2,127.95/2,936.55 = 1,183.70/x
  3. Step 3: Cross multiply
    2,127.95x = 2,936.55 × 1,183.70
  4. Step 4: Simplify right side
    2,127.95x = 3,475,979.55
  5. Step 5: Solve for x
    x = 3,475,979.55/2,127.95
  6. Step 6: Final answer
    x = 1,633.49

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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.