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Finding the Fourth Proportional to 4,889.30, 6,747.05 and 2,898.68

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Solution

The fourth proportional to 4,889.30, 6,747.05 and 2,898.68 is: 4,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.30 : 6,747.05 = 2,898.68 : x
  2. Step 2: Convert to fraction form
    4,889.30/6,747.05 = 2,898.68/x
  3. Step 3: Cross multiply
    4,889.30x = 6,747.05 × 2,898.68
  4. Step 4: Simplify right side
    4,889.30x = 19,557,512.41
  5. Step 5: Solve for x
    x = 19,557,512.41/4,889.30
  6. Step 6: Final answer
    x = 4,000.07

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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.