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Finding the Fourth Proportional to 1,848.56, 2,770.61 and 677.61

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Solution

The fourth proportional to 1,848.56, 2,770.61 and 677.61 is: 1,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848.56 : 2,770.61 = 677.61 : x
  2. Step 2: Convert to fraction form
    1,848.56/2,770.61 = 677.61/x
  3. Step 3: Cross multiply
    1,848.56x = 2,770.61 × 677.61
  4. Step 4: Simplify right side
    1,848.56x = 1,877,389.65
  5. Step 5: Solve for x
    x = 1,877,389.65/1,848.56
  6. Step 6: Final answer
    x = 1,015.60

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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.