Home / 4,751.76-7,127.64-1,289.02

Finding the Fourth Proportional to 4,751.76, 7,127.64 and 1,289.02

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Solution

The fourth proportional to 4,751.76, 7,127.64 and 1,289.02 is: 1,933.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.76 : 7,127.64 = 1,289.02 : x
  2. Step 2: Convert to fraction form
    4,751.76/7,127.64 = 1,289.02/x
  3. Step 3: Cross multiply
    4,751.76x = 7,127.64 × 1,289.02
  4. Step 4: Simplify right side
    4,751.76x = 9,187,670.51
  5. Step 5: Solve for x
    x = 9,187,670.51/4,751.76
  6. Step 6: Final answer
    x = 1,933.53

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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.