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Finding the Fourth Proportional to 1,316.39, 1,975.02 and 585.97

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Solution

The fourth proportional to 1,316.39, 1,975.02 and 585.97 is: 879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.39 : 1,975.02 = 585.97 : x
  2. Step 2: Convert to fraction form
    1,316.39/1,975.02 = 585.97/x
  3. Step 3: Cross multiply
    1,316.39x = 1,975.02 × 585.97
  4. Step 4: Simplify right side
    1,316.39x = 1,157,295.33
  5. Step 5: Solve for x
    x = 1,157,295.33/1,316.39
  6. Step 6: Final answer
    x = 879.15

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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.