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Finding the Fourth Proportional to 3,378.93, 5,064.93 and 1,531.38

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Solution

The fourth proportional to 3,378.93, 5,064.93 and 1,531.38 is: 2,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.93 : 5,064.93 = 1,531.38 : x
  2. Step 2: Convert to fraction form
    3,378.93/5,064.93 = 1,531.38/x
  3. Step 3: Cross multiply
    3,378.93x = 5,064.93 × 1,531.38
  4. Step 4: Simplify right side
    3,378.93x = 7,756,332.50
  5. Step 5: Solve for x
    x = 7,756,332.50/3,378.93
  6. Step 6: Final answer
    x = 2,295.50

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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.