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Finding the Fourth Proportional to 1,955.63, 2,698.77 and 1,127.63

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Solution

The fourth proportional to 1,955.63, 2,698.77 and 1,127.63 is: 1,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.63 : 2,698.77 = 1,127.63 : x
  2. Step 2: Convert to fraction form
    1,955.63/2,698.77 = 1,127.63/x
  3. Step 3: Cross multiply
    1,955.63x = 2,698.77 × 1,127.63
  4. Step 4: Simplify right side
    1,955.63x = 3,043,214.02
  5. Step 5: Solve for x
    x = 3,043,214.02/1,955.63
  6. Step 6: Final answer
    x = 1,556.13

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1.5x scale

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.