Home / 2,003.40-2,765.34-1,340.40

Finding the Fourth Proportional to 2,003.40, 2,765.34 and 1,340.40

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Solution

The fourth proportional to 2,003.40, 2,765.34 and 1,340.40 is: 1,850.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.40 : 2,765.34 = 1,340.40 : x
  2. Step 2: Convert to fraction form
    2,003.40/2,765.34 = 1,340.40/x
  3. Step 3: Cross multiply
    2,003.40x = 2,765.34 × 1,340.40
  4. Step 4: Simplify right side
    2,003.40x = 3,706,661.74
  5. Step 5: Solve for x
    x = 3,706,661.74/2,003.40
  6. Step 6: Final answer
    x = 1,850.19

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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.