Home / 3,686.18-5,518.23-3,554.90

Finding the Fourth Proportional to 3,686.18, 5,518.23 and 3,554.90

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Solution

The fourth proportional to 3,686.18, 5,518.23 and 3,554.90 is: 5,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.18 : 5,518.23 = 3,554.90 : x
  2. Step 2: Convert to fraction form
    3,686.18/5,518.23 = 3,554.90/x
  3. Step 3: Cross multiply
    3,686.18x = 5,518.23 × 3,554.90
  4. Step 4: Simplify right side
    3,686.18x = 19,616,755.83
  5. Step 5: Solve for x
    x = 19,616,755.83/3,686.18
  6. Step 6: Final answer
    x = 5,321.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.