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Finding the Fourth Proportional to 4,699.62, 7,050.50 and 1,412.77

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Solution

The fourth proportional to 4,699.62, 7,050.50 and 1,412.77 is: 2,119.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.62 : 7,050.50 = 1,412.77 : x
  2. Step 2: Convert to fraction form
    4,699.62/7,050.50 = 1,412.77/x
  3. Step 3: Cross multiply
    4,699.62x = 7,050.50 × 1,412.77
  4. Step 4: Simplify right side
    4,699.62x = 9,960,734.89
  5. Step 5: Solve for x
    x = 9,960,734.89/4,699.62
  6. Step 6: Final answer
    x = 2,119.48

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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.