Home / 4,762.98-7,145.62-1,988.11

Finding the Fourth Proportional to 4,762.98, 7,145.62 and 1,988.11

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Solution

The fourth proportional to 4,762.98, 7,145.62 and 1,988.11 is: 2,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,762.98 : 7,145.62 = 1,988.11 : x
  2. Step 2: Convert to fraction form
    4,762.98/7,145.62 = 1,988.11/x
  3. Step 3: Cross multiply
    4,762.98x = 7,145.62 × 1,988.11
  4. Step 4: Simplify right side
    4,762.98x = 14,206,278.58
  5. Step 5: Solve for x
    x = 14,206,278.58/4,762.98
  6. Step 6: Final answer
    x = 2,982.65

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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.