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Finding the Fourth Proportional to 3,435.92, 4,740.71 and 1,943.80

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Solution

The fourth proportional to 3,435.92, 4,740.71 and 1,943.80 is: 2,681.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.92 : 4,740.71 = 1,943.80 : x
  2. Step 2: Convert to fraction form
    3,435.92/4,740.71 = 1,943.80/x
  3. Step 3: Cross multiply
    3,435.92x = 4,740.71 × 1,943.80
  4. Step 4: Simplify right side
    3,435.92x = 9,214,981.46
  5. Step 5: Solve for x
    x = 9,214,981.46/3,435.92
  6. Step 6: Final answer
    x = 2,681.96

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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.