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Finding the Fourth Proportional to 4,858.76, 7,289.04 and 1,939.16

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Solution

The fourth proportional to 4,858.76, 7,289.04 and 1,939.16 is: 2,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,858.76 : 7,289.04 = 1,939.16 : x
  2. Step 2: Convert to fraction form
    4,858.76/7,289.04 = 1,939.16/x
  3. Step 3: Cross multiply
    4,858.76x = 7,289.04 × 1,939.16
  4. Step 4: Simplify right side
    4,858.76x = 14,134,614.81
  5. Step 5: Solve for x
    x = 14,134,614.81/4,858.76
  6. Step 6: Final answer
    x = 2,909.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.