Home / 1,647.23-2,272.73-1,057.95

Finding the Fourth Proportional to 1,647.23, 2,272.73 and 1,057.95

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Solution

The fourth proportional to 1,647.23, 2,272.73 and 1,057.95 is: 1,459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.23 : 2,272.73 = 1,057.95 : x
  2. Step 2: Convert to fraction form
    1,647.23/2,272.73 = 1,057.95/x
  3. Step 3: Cross multiply
    1,647.23x = 2,272.73 × 1,057.95
  4. Step 4: Simplify right side
    1,647.23x = 2,404,429.41
  5. Step 5: Solve for x
    x = 2,404,429.41/1,647.23
  6. Step 6: Final answer
    x = 1,459.68

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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.