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Finding the Fourth Proportional to 5,315.76, 7,335.54 and 2,957.96

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Solution

The fourth proportional to 5,315.76, 7,335.54 and 2,957.96 is: 4,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.76 : 7,335.54 = 2,957.96 : x
  2. Step 2: Convert to fraction form
    5,315.76/7,335.54 = 2,957.96/x
  3. Step 3: Cross multiply
    5,315.76x = 7,335.54 × 2,957.96
  4. Step 4: Simplify right side
    5,315.76x = 21,698,233.90
  5. Step 5: Solve for x
    x = 21,698,233.90/5,315.76
  6. Step 6: Final answer
    x = 4,081.87

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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.