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Finding the Fourth Proportional to 953.29, 1,317.20 and 734.13

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Solution

The fourth proportional to 953.29, 1,317.20 and 734.13 is: 1,014.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.29 : 1,317.20 = 734.13 : x
  2. Step 2: Convert to fraction form
    953.29/1,317.20 = 734.13/x
  3. Step 3: Cross multiply
    953.29x = 1,317.20 × 734.13
  4. Step 4: Simplify right side
    953.29x = 966,992.37
  5. Step 5: Solve for x
    x = 966,992.37/953.29
  6. Step 6: Final answer
    x = 1,014.38

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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.