Home / 3,428.18-4,731.11-1,935.55

Finding the Fourth Proportional to 3,428.18, 4,731.11 and 1,935.55

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Solution

The fourth proportional to 3,428.18, 4,731.11 and 1,935.55 is: 2,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.18 : 4,731.11 = 1,935.55 : x
  2. Step 2: Convert to fraction form
    3,428.18/4,731.11 = 1,935.55/x
  3. Step 3: Cross multiply
    3,428.18x = 4,731.11 × 1,935.55
  4. Step 4: Simplify right side
    3,428.18x = 9,157,299.96
  5. Step 5: Solve for x
    x = 9,157,299.96/3,428.18
  6. Step 6: Final answer
    x = 2,671.18

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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.