Home / 1,845.21-2,757.03-1,780.62

Finding the Fourth Proportional to 1,845.21, 2,757.03 and 1,780.62

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Solution

The fourth proportional to 1,845.21, 2,757.03 and 1,780.62 is: 2,660.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.21 : 2,757.03 = 1,780.62 : x
  2. Step 2: Convert to fraction form
    1,845.21/2,757.03 = 1,780.62/x
  3. Step 3: Cross multiply
    1,845.21x = 2,757.03 × 1,780.62
  4. Step 4: Simplify right side
    1,845.21x = 4,909,222.76
  5. Step 5: Solve for x
    x = 4,909,222.76/1,845.21
  6. Step 6: Final answer
    x = 2,660.52

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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.