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Finding the Fourth Proportional to 3,429.77, 4,733.06 and 1,938.17

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Solution

The fourth proportional to 3,429.77, 4,733.06 and 1,938.17 is: 2,674.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.77 : 4,733.06 = 1,938.17 : x
  2. Step 2: Convert to fraction form
    3,429.77/4,733.06 = 1,938.17/x
  3. Step 3: Cross multiply
    3,429.77x = 4,733.06 × 1,938.17
  4. Step 4: Simplify right side
    3,429.77x = 9,173,474.90
  5. Step 5: Solve for x
    x = 9,173,474.90/3,429.77
  6. Step 6: Final answer
    x = 2,674.66

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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.