Home / 2,003.07-2,765.12-1,206.75

Finding the Fourth Proportional to 2,003.07, 2,765.12 and 1,206.75

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Solution

The fourth proportional to 2,003.07, 2,765.12 and 1,206.75 is: 1,665.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.07 : 2,765.12 = 1,206.75 : x
  2. Step 2: Convert to fraction form
    2,003.07/2,765.12 = 1,206.75/x
  3. Step 3: Cross multiply
    2,003.07x = 2,765.12 × 1,206.75
  4. Step 4: Simplify right side
    2,003.07x = 3,336,802.53
  5. Step 5: Solve for x
    x = 3,336,802.53/2,003.07
  6. Step 6: Final answer
    x = 1,665.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.