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Finding the Fourth Proportional to 2,535.84, 3,804.44 and 780.89

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Solution

The fourth proportional to 2,535.84, 3,804.44 and 780.89 is: 1,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,535.84 : 3,804.44 = 780.89 : x
  2. Step 2: Convert to fraction form
    2,535.84/3,804.44 = 780.89/x
  3. Step 3: Cross multiply
    2,535.84x = 3,804.44 × 780.89
  4. Step 4: Simplify right side
    2,535.84x = 2,970,826.22
  5. Step 5: Solve for x
    x = 2,970,826.22/2,535.84
  6. Step 6: Final answer
    x = 1,171.54

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1.5x scale

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.