Home / 4,751.69-7,126.72-1,288.13

Finding the Fourth Proportional to 4,751.69, 7,126.72 and 1,288.13

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Solution

The fourth proportional to 4,751.69, 7,126.72 and 1,288.13 is: 1,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.69 : 7,126.72 = 1,288.13 : x
  2. Step 2: Convert to fraction form
    4,751.69/7,126.72 = 1,288.13/x
  3. Step 3: Cross multiply
    4,751.69x = 7,126.72 × 1,288.13
  4. Step 4: Simplify right side
    4,751.69x = 9,180,102.98
  5. Step 5: Solve for x
    x = 9,180,102.98/4,751.69
  6. Step 6: Final answer
    x = 1,931.97

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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.