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Finding the Fourth Proportional to 4,975.86, 7,464.95 and 1,855.88

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Solution

The fourth proportional to 4,975.86, 7,464.95 and 1,855.88 is: 2,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.86 : 7,464.95 = 1,855.88 : x
  2. Step 2: Convert to fraction form
    4,975.86/7,464.95 = 1,855.88/x
  3. Step 3: Cross multiply
    4,975.86x = 7,464.95 × 1,855.88
  4. Step 4: Simplify right side
    4,975.86x = 13,854,051.41
  5. Step 5: Solve for x
    x = 13,854,051.41/4,975.86
  6. Step 6: Final answer
    x = 2,784.25

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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.