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Finding the Fourth Proportional to 5,347.40, 7,964.72 and 5,107.54

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Solution

The fourth proportional to 5,347.40, 7,964.72 and 5,107.54 is: 7,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.40 : 7,964.72 = 5,107.54 : x
  2. Step 2: Convert to fraction form
    5,347.40/7,964.72 = 5,107.54/x
  3. Step 3: Cross multiply
    5,347.40x = 7,964.72 × 5,107.54
  4. Step 4: Simplify right side
    5,347.40x = 40,680,080.54
  5. Step 5: Solve for x
    x = 40,680,080.54/5,347.40
  6. Step 6: Final answer
    x = 7,607.45

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.