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Finding the Fourth Proportional to 3,558.69, 5,338.04 and 1,803.42

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Solution

The fourth proportional to 3,558.69, 5,338.04 and 1,803.42 is: 2,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.69 : 5,338.04 = 1,803.42 : x
  2. Step 2: Convert to fraction form
    3,558.69/5,338.04 = 1,803.42/x
  3. Step 3: Cross multiply
    3,558.69x = 5,338.04 × 1,803.42
  4. Step 4: Simplify right side
    3,558.69x = 9,626,719.08
  5. Step 5: Solve for x
    x = 9,626,719.08/3,558.69
  6. Step 6: Final answer
    x = 2,705.13

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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.