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Finding the Fourth Proportional to 3,358.95, 4,635.25 and 1,866.79

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Solution

The fourth proportional to 3,358.95, 4,635.25 and 1,866.79 is: 2,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.95 : 4,635.25 = 1,866.79 : x
  2. Step 2: Convert to fraction form
    3,358.95/4,635.25 = 1,866.79/x
  3. Step 3: Cross multiply
    3,358.95x = 4,635.25 × 1,866.79
  4. Step 4: Simplify right side
    3,358.95x = 8,653,029.01
  5. Step 5: Solve for x
    x = 8,653,029.01/3,358.95
  6. Step 6: Final answer
    x = 2,576.12

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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.