Home / 4,751.86-7,127.76-1,289.11

Finding the Fourth Proportional to 4,751.86, 7,127.76 and 1,289.11

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Solution

The fourth proportional to 4,751.86, 7,127.76 and 1,289.11 is: 1,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.86 : 7,127.76 = 1,289.11 : x
  2. Step 2: Convert to fraction form
    4,751.86/7,127.76 = 1,289.11/x
  3. Step 3: Cross multiply
    4,751.86x = 7,127.76 × 1,289.11
  4. Step 4: Simplify right side
    4,751.86x = 9,188,466.69
  5. Step 5: Solve for x
    x = 9,188,466.69/4,751.86
  6. Step 6: Final answer
    x = 1,933.66

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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.