Home / 1,305.21-1,954.36-1,045.74

Finding the Fourth Proportional to 1,305.21, 1,954.36 and 1,045.74

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Solution

The fourth proportional to 1,305.21, 1,954.36 and 1,045.74 is: 1,565.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305.21 : 1,954.36 = 1,045.74 : x
  2. Step 2: Convert to fraction form
    1,305.21/1,954.36 = 1,045.74/x
  3. Step 3: Cross multiply
    1,305.21x = 1,954.36 × 1,045.74
  4. Step 4: Simplify right side
    1,305.21x = 2,043,761.06
  5. Step 5: Solve for x
    x = 2,043,761.06/1,305.21
  6. Step 6: Final answer
    x = 1,565.84

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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.