Home / 1,638.39-2,466.81-1,444.63

Finding the Fourth Proportional to 1,638.39, 2,466.81 and 1,444.63

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Solution

The fourth proportional to 1,638.39, 2,466.81 and 1,444.63 is: 2,175.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.39 : 2,466.81 = 1,444.63 : x
  2. Step 2: Convert to fraction form
    1,638.39/2,466.81 = 1,444.63/x
  3. Step 3: Cross multiply
    1,638.39x = 2,466.81 × 1,444.63
  4. Step 4: Simplify right side
    1,638.39x = 3,563,627.73
  5. Step 5: Solve for x
    x = 3,563,627.73/1,638.39
  6. Step 6: Final answer
    x = 2,175.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.