Home / 4,986.34-7,463.70-2,788.40

Finding the Fourth Proportional to 4,986.34, 7,463.70 and 2,788.40

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Solution

The fourth proportional to 4,986.34, 7,463.70 and 2,788.40 is: 4,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.34 : 7,463.70 = 2,788.40 : x
  2. Step 2: Convert to fraction form
    4,986.34/7,463.70 = 2,788.40/x
  3. Step 3: Cross multiply
    4,986.34x = 7,463.70 × 2,788.40
  4. Step 4: Simplify right side
    4,986.34x = 20,811,781.08
  5. Step 5: Solve for x
    x = 20,811,781.08/4,986.34
  6. Step 6: Final answer
    x = 4,173.76

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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.