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Finding the Fourth Proportional to 4,989.84, 6,881.94 and 4,391.04

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Solution

The fourth proportional to 4,989.84, 6,881.94 and 4,391.04 is: 6,056.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.84 : 6,881.94 = 4,391.04 : x
  2. Step 2: Convert to fraction form
    4,989.84/6,881.94 = 4,391.04/x
  3. Step 3: Cross multiply
    4,989.84x = 6,881.94 × 4,391.04
  4. Step 4: Simplify right side
    4,989.84x = 30,218,873.82
  5. Step 5: Solve for x
    x = 30,218,873.82/4,989.84
  6. Step 6: Final answer
    x = 6,056.08

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1.5x scale

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.