Home / 1,647.19-2,272.21-1,148.95

Finding the Fourth Proportional to 1,647.19, 2,272.21 and 1,148.95

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Solution

The fourth proportional to 1,647.19, 2,272.21 and 1,148.95 is: 1,584.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.19 : 2,272.21 = 1,148.95 : x
  2. Step 2: Convert to fraction form
    1,647.19/2,272.21 = 1,148.95/x
  3. Step 3: Cross multiply
    1,647.19x = 2,272.21 × 1,148.95
  4. Step 4: Simplify right side
    1,647.19x = 2,610,655.68
  5. Step 5: Solve for x
    x = 2,610,655.68/1,647.19
  6. Step 6: Final answer
    x = 1,584.91

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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.