Home / 3,555.48-5,338.98-3,405.72

Finding the Fourth Proportional to 3,555.48, 5,338.98 and 3,405.72

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Solution

The fourth proportional to 3,555.48, 5,338.98 and 3,405.72 is: 5,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.48 : 5,338.98 = 3,405.72 : x
  2. Step 2: Convert to fraction form
    3,555.48/5,338.98 = 3,405.72/x
  3. Step 3: Cross multiply
    3,555.48x = 5,338.98 × 3,405.72
  4. Step 4: Simplify right side
    3,555.48x = 18,183,070.97
  5. Step 5: Solve for x
    x = 18,183,070.97/3,555.48
  6. Step 6: Final answer
    x = 5,114.10

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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.