Home / 1,655.63-2,284.34-1,212.75

Finding the Fourth Proportional to 1,655.63, 2,284.34 and 1,212.75

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Solution

The fourth proportional to 1,655.63, 2,284.34 and 1,212.75 is: 1,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.63 : 2,284.34 = 1,212.75 : x
  2. Step 2: Convert to fraction form
    1,655.63/2,284.34 = 1,212.75/x
  3. Step 3: Cross multiply
    1,655.63x = 2,284.34 × 1,212.75
  4. Step 4: Simplify right side
    1,655.63x = 2,770,327.27
  5. Step 5: Solve for x
    x = 2,770,327.27/1,655.63
  6. Step 6: Final answer
    x = 1,673.28

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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.