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Finding the Fourth Proportional to 1,330.17, 1,835.03 and 832.56

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Solution

The fourth proportional to 1,330.17, 1,835.03 and 832.56 is: 1,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.17 : 1,835.03 = 832.56 : x
  2. Step 2: Convert to fraction form
    1,330.17/1,835.03 = 832.56/x
  3. Step 3: Cross multiply
    1,330.17x = 1,835.03 × 832.56
  4. Step 4: Simplify right side
    1,330.17x = 1,527,768.41
  5. Step 5: Solve for x
    x = 1,527,768.41/1,330.17
  6. Step 6: Final answer
    x = 1,148.55

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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.