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Finding the Fourth Proportional to 2,095.85, 3,143.76 and 635.00

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Solution

The fourth proportional to 2,095.85, 3,143.76 and 635.00 is: 952.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.85 : 3,143.76 = 635.00 : x
  2. Step 2: Convert to fraction form
    2,095.85/3,143.76 = 635.00/x
  3. Step 3: Cross multiply
    2,095.85x = 3,143.76 × 635.00
  4. Step 4: Simplify right side
    2,095.85x = 1,996,271.88
  5. Step 5: Solve for x
    x = 1,996,271.88/2,095.85
  6. Step 6: Final answer
    x = 952.49

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Double scale
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Similar ratio
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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.