Home / 1,782.10-2,669.49-1,195.30

Finding the Fourth Proportional to 1,782.10, 2,669.49 and 1,195.30

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Solution

The fourth proportional to 1,782.10, 2,669.49 and 1,195.30 is: 1,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.10 : 2,669.49 = 1,195.30 : x
  2. Step 2: Convert to fraction form
    1,782.10/2,669.49 = 1,195.30/x
  3. Step 3: Cross multiply
    1,782.10x = 2,669.49 × 1,195.30
  4. Step 4: Simplify right side
    1,782.10x = 3,190,841.40
  5. Step 5: Solve for x
    x = 3,190,841.40/1,782.10
  6. Step 6: Final answer
    x = 1,790.50

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1.5x scale

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.