Home / 2,905.07-4,357.80-1,261.73

Finding the Fourth Proportional to 2,905.07, 4,357.80 and 1,261.73

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Solution

The fourth proportional to 2,905.07, 4,357.80 and 1,261.73 is: 1,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.07 : 4,357.80 = 1,261.73 : x
  2. Step 2: Convert to fraction form
    2,905.07/4,357.80 = 1,261.73/x
  3. Step 3: Cross multiply
    2,905.07x = 4,357.80 × 1,261.73
  4. Step 4: Simplify right side
    2,905.07x = 5,498,366.99
  5. Step 5: Solve for x
    x = 5,498,366.99/2,905.07
  6. Step 6: Final answer
    x = 1,892.68

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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.