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Finding the Fourth Proportional to 954.96, 1,317.91 and 535.35

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Solution

The fourth proportional to 954.96, 1,317.91 and 535.35 is: 738.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.96 : 1,317.91 = 535.35 : x
  2. Step 2: Convert to fraction form
    954.96/1,317.91 = 535.35/x
  3. Step 3: Cross multiply
    954.96x = 1,317.91 × 535.35
  4. Step 4: Simplify right side
    954.96x = 705,536.53
  5. Step 5: Solve for x
    x = 705,536.53/954.96
  6. Step 6: Final answer
    x = 738.81

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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.