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Finding the Fourth Proportional to 683.10, 958.50 and 683.10

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Solution

The fourth proportional to 683.10, 958.50 and 683.10 is: 958.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.10 : 958.50 = 683.10 : x
  2. Step 2: Convert to fraction form
    683.10/958.50 = 683.10/x
  3. Step 3: Cross multiply
    683.10x = 958.50 × 683.10
  4. Step 4: Simplify right side
    683.10x = 654,751.35
  5. Step 5: Solve for x
    x = 654,751.35/683.10
  6. Step 6: Final answer
    x = 958.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.