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Finding the Fourth Proportional to 2,183.55, 3,275.60 and 702.87

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Solution

The fourth proportional to 2,183.55, 3,275.60 and 702.87 is: 1,054.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.55 : 3,275.60 = 702.87 : x
  2. Step 2: Convert to fraction form
    2,183.55/3,275.60 = 702.87/x
  3. Step 3: Cross multiply
    2,183.55x = 3,275.60 × 702.87
  4. Step 4: Simplify right side
    2,183.55x = 2,302,317.46
  5. Step 5: Solve for x
    x = 2,302,317.46/2,183.55
  6. Step 6: Final answer
    x = 1,054.39

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1.5x scale

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.