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Finding the Fourth Proportional to 7,051.76, 9,729.80 and 4,818.32

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Solution

The fourth proportional to 7,051.76, 9,729.80 and 4,818.32 is: 6,648.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.76 : 9,729.80 = 4,818.32 : x
  2. Step 2: Convert to fraction form
    7,051.76/9,729.80 = 4,818.32/x
  3. Step 3: Cross multiply
    7,051.76x = 9,729.80 × 4,818.32
  4. Step 4: Simplify right side
    7,051.76x = 46,881,289.94
  5. Step 5: Solve for x
    x = 46,881,289.94/7,051.76
  6. Step 6: Final answer
    x = 6,648.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.