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Finding the Fourth Proportional to 1,783.55, 2,675.70 and 550.93

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Solution

The fourth proportional to 1,783.55, 2,675.70 and 550.93 is: 826.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,783.55 : 2,675.70 = 550.93 : x
  2. Step 2: Convert to fraction form
    1,783.55/2,675.70 = 550.93/x
  3. Step 3: Cross multiply
    1,783.55x = 2,675.70 × 550.93
  4. Step 4: Simplify right side
    1,783.55x = 1,474,123.40
  5. Step 5: Solve for x
    x = 1,474,123.40/1,783.55
  6. Step 6: Final answer
    x = 826.51

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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.