Home / 1,635.06-2,254.84-1,261.45

Finding the Fourth Proportional to 1,635.06, 2,254.84 and 1,261.45

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Solution

The fourth proportional to 1,635.06, 2,254.84 and 1,261.45 is: 1,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.06 : 2,254.84 = 1,261.45 : x
  2. Step 2: Convert to fraction form
    1,635.06/2,254.84 = 1,261.45/x
  3. Step 3: Cross multiply
    1,635.06x = 2,254.84 × 1,261.45
  4. Step 4: Simplify right side
    1,635.06x = 2,844,367.58
  5. Step 5: Solve for x
    x = 2,844,367.58/1,635.06
  6. Step 6: Final answer
    x = 1,739.61

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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.