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Finding the Fourth Proportional to 763.32, 1,051.74 and 734.52

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Solution

The fourth proportional to 763.32, 1,051.74 and 734.52 is: 1,012.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    763.32 : 1,051.74 = 734.52 : x
  2. Step 2: Convert to fraction form
    763.32/1,051.74 = 734.52/x
  3. Step 3: Cross multiply
    763.32x = 1,051.74 × 734.52
  4. Step 4: Simplify right side
    763.32x = 772,524.06
  5. Step 5: Solve for x
    x = 772,524.06/763.32
  6. Step 6: Final answer
    x = 1,012.06

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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.