Home / 1,190.05-1,785.48-1,075.03

Finding the Fourth Proportional to 1,190.05, 1,785.48 and 1,075.03

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Solution

The fourth proportional to 1,190.05, 1,785.48 and 1,075.03 is: 1,612.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.05 : 1,785.48 = 1,075.03 : x
  2. Step 2: Convert to fraction form
    1,190.05/1,785.48 = 1,075.03/x
  3. Step 3: Cross multiply
    1,190.05x = 1,785.48 × 1,075.03
  4. Step 4: Simplify right side
    1,190.05x = 1,919,444.56
  5. Step 5: Solve for x
    x = 1,919,444.56/1,190.05
  6. Step 6: Final answer
    x = 1,612.91

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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.