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Finding the Fourth Proportional to 1,030.17, 1,422.44 and 676.33

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Solution

The fourth proportional to 1,030.17, 1,422.44 and 676.33 is: 933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.17 : 1,422.44 = 676.33 : x
  2. Step 2: Convert to fraction form
    1,030.17/1,422.44 = 676.33/x
  3. Step 3: Cross multiply
    1,030.17x = 1,422.44 × 676.33
  4. Step 4: Simplify right side
    1,030.17x = 962,038.85
  5. Step 5: Solve for x
    x = 962,038.85/1,030.17
  6. Step 6: Final answer
    x = 933.86

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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.