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Finding the Fourth Proportional to 1,483.40, 2,048.82 and 1,397

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Solution

The fourth proportional to 1,483.40, 2,048.82 and 1,397 is: 1,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.40 : 2,048.82 = 1,397 : x
  2. Step 2: Convert to fraction form
    1,483.40/2,048.82 = 1,397/x
  3. Step 3: Cross multiply
    1,483.40x = 2,048.82 × 1,397
  4. Step 4: Simplify right side
    1,483.40x = 2,862,201.54
  5. Step 5: Solve for x
    x = 2,862,201.54/1,483.40
  6. Step 6: Final answer
    x = 1,929.49

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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.