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Finding the Fourth Proportional to 2,338.76, 3,506.30 and 877.74

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Solution

The fourth proportional to 2,338.76, 3,506.30 and 877.74 is: 1,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338.76 : 3,506.30 = 877.74 : x
  2. Step 2: Convert to fraction form
    2,338.76/3,506.30 = 877.74/x
  3. Step 3: Cross multiply
    2,338.76x = 3,506.30 × 877.74
  4. Step 4: Simplify right side
    2,338.76x = 3,077,619.76
  5. Step 5: Solve for x
    x = 3,077,619.76/2,338.76
  6. Step 6: Final answer
    x = 1,315.92

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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.