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Finding the Fourth Proportional to 1,888.45, 2,827.82 and 1,237.21

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Solution

The fourth proportional to 1,888.45, 2,827.82 and 1,237.21 is: 1,852.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.45 : 2,827.82 = 1,237.21 : x
  2. Step 2: Convert to fraction form
    1,888.45/2,827.82 = 1,237.21/x
  3. Step 3: Cross multiply
    1,888.45x = 2,827.82 × 1,237.21
  4. Step 4: Simplify right side
    1,888.45x = 3,498,601.00
  5. Step 5: Solve for x
    x = 3,498,601.00/1,888.45
  6. Step 6: Final answer
    x = 1,852.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.