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Finding the Fourth Proportional to 1,330.06, 1,835.35 and 806.06

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Solution

The fourth proportional to 1,330.06, 1,835.35 and 806.06 is: 1,112.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.06 : 1,835.35 = 806.06 : x
  2. Step 2: Convert to fraction form
    1,330.06/1,835.35 = 806.06/x
  3. Step 3: Cross multiply
    1,330.06x = 1,835.35 × 806.06
  4. Step 4: Simplify right side
    1,330.06x = 1,479,402.22
  5. Step 5: Solve for x
    x = 1,479,402.22/1,330.06
  6. Step 6: Final answer
    x = 1,112.28

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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.