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Finding the Fourth Proportional to 858.03, 1,183.86 and 671.19

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Solution

The fourth proportional to 858.03, 1,183.86 and 671.19 is: 926.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    858.03 : 1,183.86 = 671.19 : x
  2. Step 2: Convert to fraction form
    858.03/1,183.86 = 671.19/x
  3. Step 3: Cross multiply
    858.03x = 1,183.86 × 671.19
  4. Step 4: Simplify right side
    858.03x = 794,594.99
  5. Step 5: Solve for x
    x = 794,594.99/858.03
  6. Step 6: Final answer
    x = 926.07

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Double scale
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1.5x scale

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.