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Finding the Fourth Proportional to 995.73, 1,373.50 and 659.62

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Solution

The fourth proportional to 995.73, 1,373.50 and 659.62 is: 909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.73 : 1,373.50 = 659.62 : x
  2. Step 2: Convert to fraction form
    995.73/1,373.50 = 659.62/x
  3. Step 3: Cross multiply
    995.73x = 1,373.50 × 659.62
  4. Step 4: Simplify right side
    995.73x = 905,988.07
  5. Step 5: Solve for x
    x = 905,988.07/995.73
  6. Step 6: Final answer
    x = 909.87

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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.