Home / 1,200.64-1,790.85-1,164.20

Finding the Fourth Proportional to 1,200.64, 1,790.85 and 1,164.20

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Solution

The fourth proportional to 1,200.64, 1,790.85 and 1,164.20 is: 1,736.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200.64 : 1,790.85 = 1,164.20 : x
  2. Step 2: Convert to fraction form
    1,200.64/1,790.85 = 1,164.20/x
  3. Step 3: Cross multiply
    1,200.64x = 1,790.85 × 1,164.20
  4. Step 4: Simplify right side
    1,200.64x = 2,084,907.57
  5. Step 5: Solve for x
    x = 2,084,907.57/1,200.64
  6. Step 6: Final answer
    x = 1,736.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.