Home / 2,126.94-2,935-1,182.65

Finding the Fourth Proportional to 2,126.94, 2,935 and 1,182.65

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Solution

The fourth proportional to 2,126.94, 2,935 and 1,182.65 is: 1,631.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.94 : 2,935 = 1,182.65 : x
  2. Step 2: Convert to fraction form
    2,126.94/2,935 = 1,182.65/x
  3. Step 3: Cross multiply
    2,126.94x = 2,935 × 1,182.65
  4. Step 4: Simplify right side
    2,126.94x = 3,471,077.75
  5. Step 5: Solve for x
    x = 3,471,077.75/2,126.94
  6. Step 6: Final answer
    x = 1,631.96

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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.