Home / 1,455.84-2,004.48-1,261.44

Finding the Fourth Proportional to 1,455.84, 2,004.48 and 1,261.44

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Solution

The fourth proportional to 1,455.84, 2,004.48 and 1,261.44 is: 1,736.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.84 : 2,004.48 = 1,261.44 : x
  2. Step 2: Convert to fraction form
    1,455.84/2,004.48 = 1,261.44/x
  3. Step 3: Cross multiply
    1,455.84x = 2,004.48 × 1,261.44
  4. Step 4: Simplify right side
    1,455.84x = 2,528,531.25
  5. Step 5: Solve for x
    x = 2,528,531.25/1,455.84
  6. Step 6: Final answer
    x = 1,736.82

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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.