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Finding the Fourth Proportional to 968.66, 1,336.40 and 595.35

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Solution

The fourth proportional to 968.66, 1,336.40 and 595.35 is: 821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.66 : 1,336.40 = 595.35 : x
  2. Step 2: Convert to fraction form
    968.66/1,336.40 = 595.35/x
  3. Step 3: Cross multiply
    968.66x = 1,336.40 × 595.35
  4. Step 4: Simplify right side
    968.66x = 795,625.00
  5. Step 5: Solve for x
    x = 795,625.00/968.66
  6. Step 6: Final answer
    x = 821.37

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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.