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Finding the Fourth Proportional to 5,252.40, 7,248.20 and 2,894.54

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Solution

The fourth proportional to 5,252.40, 7,248.20 and 2,894.54 is: 3,994.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.40 : 7,248.20 = 2,894.54 : x
  2. Step 2: Convert to fraction form
    5,252.40/7,248.20 = 2,894.54/x
  3. Step 3: Cross multiply
    5,252.40x = 7,248.20 × 2,894.54
  4. Step 4: Simplify right side
    5,252.40x = 20,980,154.11
  5. Step 5: Solve for x
    x = 20,980,154.11/5,252.40
  6. Step 6: Final answer
    x = 3,994.39

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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.