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Finding the Fourth Proportional to 1,260.16, 1,880.48 and 1,250.56

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Solution

The fourth proportional to 1,260.16, 1,880.48 and 1,250.56 is: 1,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.16 : 1,880.48 = 1,250.56 : x
  2. Step 2: Convert to fraction form
    1,260.16/1,880.48 = 1,250.56/x
  3. Step 3: Cross multiply
    1,260.16x = 1,880.48 × 1,250.56
  4. Step 4: Simplify right side
    1,260.16x = 2,351,653.07
  5. Step 5: Solve for x
    x = 2,351,653.07/1,260.16
  6. Step 6: Final answer
    x = 1,866.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.