Home / 4,876.89-6,727.21-2,989.32

Finding the Fourth Proportional to 4,876.89, 6,727.21 and 2,989.32

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Solution

The fourth proportional to 4,876.89, 6,727.21 and 2,989.32 is: 4,123.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.89 : 6,727.21 = 2,989.32 : x
  2. Step 2: Convert to fraction form
    4,876.89/6,727.21 = 2,989.32/x
  3. Step 3: Cross multiply
    4,876.89x = 6,727.21 × 2,989.32
  4. Step 4: Simplify right side
    4,876.89x = 20,109,783.40
  5. Step 5: Solve for x
    x = 20,109,783.40/4,876.89
  6. Step 6: Final answer
    x = 4,123.49

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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.