Home / 4,750.76-7,126.14-1,288.02

Finding the Fourth Proportional to 4,750.76, 7,126.14 and 1,288.02

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Solution

The fourth proportional to 4,750.76, 7,126.14 and 1,288.02 is: 1,932.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.76 : 7,126.14 = 1,288.02 : x
  2. Step 2: Convert to fraction form
    4,750.76/7,126.14 = 1,288.02/x
  3. Step 3: Cross multiply
    4,750.76x = 7,126.14 × 1,288.02
  4. Step 4: Simplify right side
    4,750.76x = 9,178,610.84
  5. Step 5: Solve for x
    x = 9,178,610.84/4,750.76
  6. Step 6: Final answer
    x = 1,932.03

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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.