Home / 1,768.36-2,652.20-1,680.55

Finding the Fourth Proportional to 1,768.36, 2,652.20 and 1,680.55

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Solution

The fourth proportional to 1,768.36, 2,652.20 and 1,680.55 is: 2,520.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.36 : 2,652.20 = 1,680.55 : x
  2. Step 2: Convert to fraction form
    1,768.36/2,652.20 = 1,680.55/x
  3. Step 3: Cross multiply
    1,768.36x = 2,652.20 × 1,680.55
  4. Step 4: Simplify right side
    1,768.36x = 4,457,150.51
  5. Step 5: Solve for x
    x = 4,457,150.51/1,768.36
  6. Step 6: Final answer
    x = 2,520.50

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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.