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Finding the Fourth Proportional to 3,258, 4,887.27 and 1,283.49

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Solution

The fourth proportional to 3,258, 4,887.27 and 1,283.49 is: 1,925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258 : 4,887.27 = 1,283.49 : x
  2. Step 2: Convert to fraction form
    3,258/4,887.27 = 1,283.49/x
  3. Step 3: Cross multiply
    3,258x = 4,887.27 × 1,283.49
  4. Step 4: Simplify right side
    3,258x = 6,272,762.17
  5. Step 5: Solve for x
    x = 6,272,762.17/3,258
  6. Step 6: Final answer
    x = 1,925.34

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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.