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Finding the Fourth Proportional to 2,478.76, 3,418.75 and 1,483.84

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Solution

The fourth proportional to 2,478.76, 3,418.75 and 1,483.84 is: 2,046.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.76 : 3,418.75 = 1,483.84 : x
  2. Step 2: Convert to fraction form
    2,478.76/3,418.75 = 1,483.84/x
  3. Step 3: Cross multiply
    2,478.76x = 3,418.75 × 1,483.84
  4. Step 4: Simplify right side
    2,478.76x = 5,072,878
  5. Step 5: Solve for x
    x = 5,072,878/2,478.76
  6. Step 6: Final answer
    x = 2,046.54

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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.