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Finding the Fourth Proportional to 751.10, 1,036.65 and 573.77

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Solution

The fourth proportional to 751.10, 1,036.65 and 573.77 is: 791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    751.10 : 1,036.65 = 573.77 : x
  2. Step 2: Convert to fraction form
    751.10/1,036.65 = 573.77/x
  3. Step 3: Cross multiply
    751.10x = 1,036.65 × 573.77
  4. Step 4: Simplify right side
    751.10x = 594,793.49
  5. Step 5: Solve for x
    x = 594,793.49/751.10
  6. Step 6: Final answer
    x = 791.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.