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Finding the Fourth Proportional to 2,495.19, 3,741.51 and 851.28

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Solution

The fourth proportional to 2,495.19, 3,741.51 and 851.28 is: 1,276.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.19 : 3,741.51 = 851.28 : x
  2. Step 2: Convert to fraction form
    2,495.19/3,741.51 = 851.28/x
  3. Step 3: Cross multiply
    2,495.19x = 3,741.51 × 851.28
  4. Step 4: Simplify right side
    2,495.19x = 3,185,072.63
  5. Step 5: Solve for x
    x = 3,185,072.63/2,495.19
  6. Step 6: Final answer
    x = 1,276.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.