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Finding the Fourth Proportional to 1,903.50, 2,627.19 and 1,075.50

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Solution

The fourth proportional to 1,903.50, 2,627.19 and 1,075.50 is: 1,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.50 : 2,627.19 = 1,075.50 : x
  2. Step 2: Convert to fraction form
    1,903.50/2,627.19 = 1,075.50/x
  3. Step 3: Cross multiply
    1,903.50x = 2,627.19 × 1,075.50
  4. Step 4: Simplify right side
    1,903.50x = 2,825,542.85
  5. Step 5: Solve for x
    x = 2,825,542.85/1,903.50
  6. Step 6: Final answer
    x = 1,484.39

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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.