Home / 2,018.40-2,777.81-1,707.75

Finding the Fourth Proportional to 2,018.40, 2,777.81 and 1,707.75

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Solution

The fourth proportional to 2,018.40, 2,777.81 and 1,707.75 is: 2,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.40 : 2,777.81 = 1,707.75 : x
  2. Step 2: Convert to fraction form
    2,018.40/2,777.81 = 1,707.75/x
  3. Step 3: Cross multiply
    2,018.40x = 2,777.81 × 1,707.75
  4. Step 4: Simplify right side
    2,018.40x = 4,743,796.49
  5. Step 5: Solve for x
    x = 4,743,796.49/2,018.40
  6. Step 6: Final answer
    x = 2,350.28

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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.