Home / 1,476.63-2,216.21-859.46

Finding the Fourth Proportional to 1,476.63, 2,216.21 and 859.46

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Solution

The fourth proportional to 1,476.63, 2,216.21 and 859.46 is: 1,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.63 : 2,216.21 = 859.46 : x
  2. Step 2: Convert to fraction form
    1,476.63/2,216.21 = 859.46/x
  3. Step 3: Cross multiply
    1,476.63x = 2,216.21 × 859.46
  4. Step 4: Simplify right side
    1,476.63x = 1,904,745.77
  5. Step 5: Solve for x
    x = 1,904,745.77/1,476.63
  6. Step 6: Final answer
    x = 1,289.93

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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.