Home / 1,075.18-1,474.09-1,055.74

Finding the Fourth Proportional to 1,075.18, 1,474.09 and 1,055.74

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Solution

The fourth proportional to 1,075.18, 1,474.09 and 1,055.74 is: 1,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.18 : 1,474.09 = 1,055.74 : x
  2. Step 2: Convert to fraction form
    1,075.18/1,474.09 = 1,055.74/x
  3. Step 3: Cross multiply
    1,075.18x = 1,474.09 × 1,055.74
  4. Step 4: Simplify right side
    1,075.18x = 1,556,255.78
  5. Step 5: Solve for x
    x = 1,556,255.78/1,075.18
  6. Step 6: Final answer
    x = 1,447.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.