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Finding the Fourth Proportional to 4,989.94, 6,887.03 and 2,894.06

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Solution

The fourth proportional to 4,989.94, 6,887.03 and 2,894.06 is: 3,994.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.94 : 6,887.03 = 2,894.06 : x
  2. Step 2: Convert to fraction form
    4,989.94/6,887.03 = 2,894.06/x
  3. Step 3: Cross multiply
    4,989.94x = 6,887.03 × 2,894.06
  4. Step 4: Simplify right side
    4,989.94x = 19,931,480.79
  5. Step 5: Solve for x
    x = 19,931,480.79/4,989.94
  6. Step 6: Final answer
    x = 3,994.33

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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.