Home / 1,716.45-2,369.73-1,128

Finding the Fourth Proportional to 1,716.45, 2,369.73 and 1,128

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Solution

The fourth proportional to 1,716.45, 2,369.73 and 1,128 is: 1,557.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.45 : 2,369.73 = 1,128 : x
  2. Step 2: Convert to fraction form
    1,716.45/2,369.73 = 1,128/x
  3. Step 3: Cross multiply
    1,716.45x = 2,369.73 × 1,128
  4. Step 4: Simplify right side
    1,716.45x = 2,673,055.44
  5. Step 5: Solve for x
    x = 2,673,055.44/1,716.45
  6. Step 6: Final answer
    x = 1,557.32

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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.