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Finding the Fourth Proportional to 751.83, 1,036.42 and 565.32

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Solution

The fourth proportional to 751.83, 1,036.42 and 565.32 is: 779.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    751.83 : 1,036.42 = 565.32 : x
  2. Step 2: Convert to fraction form
    751.83/1,036.42 = 565.32/x
  3. Step 3: Cross multiply
    751.83x = 1,036.42 × 565.32
  4. Step 4: Simplify right side
    751.83x = 585,908.95
  5. Step 5: Solve for x
    x = 585,908.95/751.83
  6. Step 6: Final answer
    x = 779.31

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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.