Home / 3,358.80-4,635.18-1,866.78

Finding the Fourth Proportional to 3,358.80, 4,635.18 and 1,866.78

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Solution

The fourth proportional to 3,358.80, 4,635.18 and 1,866.78 is: 2,576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.80 : 4,635.18 = 1,866.78 : x
  2. Step 2: Convert to fraction form
    3,358.80/4,635.18 = 1,866.78/x
  3. Step 3: Cross multiply
    3,358.80x = 4,635.18 × 1,866.78
  4. Step 4: Simplify right side
    3,358.80x = 8,652,861.32
  5. Step 5: Solve for x
    x = 8,652,861.32/3,358.80
  6. Step 6: Final answer
    x = 2,576.18

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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.