Home / 1,782.54-2,458.35-1,284.39

Finding the Fourth Proportional to 1,782.54, 2,458.35 and 1,284.39

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Solution

The fourth proportional to 1,782.54, 2,458.35 and 1,284.39 is: 1,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.54 : 2,458.35 = 1,284.39 : x
  2. Step 2: Convert to fraction form
    1,782.54/2,458.35 = 1,284.39/x
  3. Step 3: Cross multiply
    1,782.54x = 2,458.35 × 1,284.39
  4. Step 4: Simplify right side
    1,782.54x = 3,157,480.16
  5. Step 5: Solve for x
    x = 3,157,480.16/1,782.54
  6. Step 6: Final answer
    x = 1,771.34

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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.