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Finding the Fourth Proportional to 3,260.63, 4,888.51 and 1,961.80

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Solution

The fourth proportional to 3,260.63, 4,888.51 and 1,961.80 is: 2,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.63 : 4,888.51 = 1,961.80 : x
  2. Step 2: Convert to fraction form
    3,260.63/4,888.51 = 1,961.80/x
  3. Step 3: Cross multiply
    3,260.63x = 4,888.51 × 1,961.80
  4. Step 4: Simplify right side
    3,260.63x = 9,590,278.92
  5. Step 5: Solve for x
    x = 9,590,278.92/3,260.63
  6. Step 6: Final answer
    x = 2,941.23

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1.5x scale

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.