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Finding the Fourth Proportional to 3,155.73, 4,352.74 and 1,829.45

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Solution

The fourth proportional to 3,155.73, 4,352.74 and 1,829.45 is: 2,523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.73 : 4,352.74 = 1,829.45 : x
  2. Step 2: Convert to fraction form
    3,155.73/4,352.74 = 1,829.45/x
  3. Step 3: Cross multiply
    3,155.73x = 4,352.74 × 1,829.45
  4. Step 4: Simplify right side
    3,155.73x = 7,963,126.50
  5. Step 5: Solve for x
    x = 7,963,126.50/3,155.73
  6. Step 6: Final answer
    x = 2,523.39

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1.5x scale

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.