Home / 1,622.10-2,427.15-1,190.10

Finding the Fourth Proportional to 1,622.10, 2,427.15 and 1,190.10

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Solution

The fourth proportional to 1,622.10, 2,427.15 and 1,190.10 is: 1,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.10 : 2,427.15 = 1,190.10 : x
  2. Step 2: Convert to fraction form
    1,622.10/2,427.15 = 1,190.10/x
  3. Step 3: Cross multiply
    1,622.10x = 2,427.15 × 1,190.10
  4. Step 4: Simplify right side
    1,622.10x = 2,888,551.22
  5. Step 5: Solve for x
    x = 2,888,551.22/1,622.10
  6. Step 6: Final answer
    x = 1,780.75

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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.