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Finding the Fourth Proportional to 3,483, 4,806.54 and 1,911.09

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Solution

The fourth proportional to 3,483, 4,806.54 and 1,911.09 is: 2,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,483 : 4,806.54 = 1,911.09 : x
  2. Step 2: Convert to fraction form
    3,483/4,806.54 = 1,911.09/x
  3. Step 3: Cross multiply
    3,483x = 4,806.54 × 1,911.09
  4. Step 4: Simplify right side
    3,483x = 9,185,748.55
  5. Step 5: Solve for x
    x = 9,185,748.55/3,483
  6. Step 6: Final answer
    x = 2,637.31

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1.5x scale

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.