Home / 2,185.53-3,290.63-1,927.19

Finding the Fourth Proportional to 2,185.53, 3,290.63 and 1,927.19

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Solution

The fourth proportional to 2,185.53, 3,290.63 and 1,927.19 is: 2,901.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.53 : 3,290.63 = 1,927.19 : x
  2. Step 2: Convert to fraction form
    2,185.53/3,290.63 = 1,927.19/x
  3. Step 3: Cross multiply
    2,185.53x = 3,290.63 × 1,927.19
  4. Step 4: Simplify right side
    2,185.53x = 6,341,667.82
  5. Step 5: Solve for x
    x = 6,341,667.82/2,185.53
  6. Step 6: Final answer
    x = 2,901.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.