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Finding the Fourth Proportional to 5,384.87, 7,431.08 and 2,994.87

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Solution

The fourth proportional to 5,384.87, 7,431.08 and 2,994.87 is: 4,132.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.87 : 7,431.08 = 2,994.87 : x
  2. Step 2: Convert to fraction form
    5,384.87/7,431.08 = 2,994.87/x
  3. Step 3: Cross multiply
    5,384.87x = 7,431.08 × 2,994.87
  4. Step 4: Simplify right side
    5,384.87x = 22,255,088.89
  5. Step 5: Solve for x
    x = 22,255,088.89/5,384.87
  6. Step 6: Final answer
    x = 4,132.89

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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.