Home / 1,933.58-2,669.56-1,225.78

Finding the Fourth Proportional to 1,933.58, 2,669.56 and 1,225.78

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Solution

The fourth proportional to 1,933.58, 2,669.56 and 1,225.78 is: 1,692.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.58 : 2,669.56 = 1,225.78 : x
  2. Step 2: Convert to fraction form
    1,933.58/2,669.56 = 1,225.78/x
  3. Step 3: Cross multiply
    1,933.58x = 2,669.56 × 1,225.78
  4. Step 4: Simplify right side
    1,933.58x = 3,272,293.26
  5. Step 5: Solve for x
    x = 3,272,293.26/1,933.58
  6. Step 6: Final answer
    x = 1,692.35

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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.