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Finding the Fourth Proportional to 1,233.41, 1,714.10 and 1,220.67

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Solution

The fourth proportional to 1,233.41, 1,714.10 and 1,220.67 is: 1,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.41 : 1,714.10 = 1,220.67 : x
  2. Step 2: Convert to fraction form
    1,233.41/1,714.10 = 1,220.67/x
  3. Step 3: Cross multiply
    1,233.41x = 1,714.10 × 1,220.67
  4. Step 4: Simplify right side
    1,233.41x = 2,092,344.34
  5. Step 5: Solve for x
    x = 2,092,344.34/1,233.41
  6. Step 6: Final answer
    x = 1,696.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.