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Finding the Fourth Proportional to 2,756.61, 3,804.71 and 1,747.67

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Solution

The fourth proportional to 2,756.61, 3,804.71 and 1,747.67 is: 2,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.61 : 3,804.71 = 1,747.67 : x
  2. Step 2: Convert to fraction form
    2,756.61/3,804.71 = 1,747.67/x
  3. Step 3: Cross multiply
    2,756.61x = 3,804.71 × 1,747.67
  4. Step 4: Simplify right side
    2,756.61x = 6,649,349.76
  5. Step 5: Solve for x
    x = 6,649,349.76/2,756.61
  6. Step 6: Final answer
    x = 2,412.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.