Home / 4,762.47-7,138.73-1,990.74

Finding the Fourth Proportional to 4,762.47, 7,138.73 and 1,990.74

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Solution

The fourth proportional to 4,762.47, 7,138.73 and 1,990.74 is: 2,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,762.47 : 7,138.73 = 1,990.74 : x
  2. Step 2: Convert to fraction form
    4,762.47/7,138.73 = 1,990.74/x
  3. Step 3: Cross multiply
    4,762.47x = 7,138.73 × 1,990.74
  4. Step 4: Simplify right side
    4,762.47x = 14,211,324.64
  5. Step 5: Solve for x
    x = 14,211,324.64/4,762.47
  6. Step 6: Final answer
    x = 2,984.03

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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.