Home / 2,148.06-2,963.58-1,263.78

Finding the Fourth Proportional to 2,148.06, 2,963.58 and 1,263.78

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Solution

The fourth proportional to 2,148.06, 2,963.58 and 1,263.78 is: 1,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.06 : 2,963.58 = 1,263.78 : x
  2. Step 2: Convert to fraction form
    2,148.06/2,963.58 = 1,263.78/x
  3. Step 3: Cross multiply
    2,148.06x = 2,963.58 × 1,263.78
  4. Step 4: Simplify right side
    2,148.06x = 3,745,313.13
  5. Step 5: Solve for x
    x = 3,745,313.13/2,148.06
  6. Step 6: Final answer
    x = 1,743.58

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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.