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Finding the Fourth Proportional to 1,075, 1,483.26 and 632.92

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Solution

The fourth proportional to 1,075, 1,483.26 and 632.92 is: 873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075 : 1,483.26 = 632.92 : x
  2. Step 2: Convert to fraction form
    1,075/1,483.26 = 632.92/x
  3. Step 3: Cross multiply
    1,075x = 1,483.26 × 632.92
  4. Step 4: Simplify right side
    1,075x = 938,784.92
  5. Step 5: Solve for x
    x = 938,784.92/1,075
  6. Step 6: Final answer
    x = 873.29

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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.