Home / 3,556.81-5,333.79-1,475.40

Finding the Fourth Proportional to 3,556.81, 5,333.79 and 1,475.40

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Solution

The fourth proportional to 3,556.81, 5,333.79 and 1,475.40 is: 2,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.81 : 5,333.79 = 1,475.40 : x
  2. Step 2: Convert to fraction form
    3,556.81/5,333.79 = 1,475.40/x
  3. Step 3: Cross multiply
    3,556.81x = 5,333.79 × 1,475.40
  4. Step 4: Simplify right side
    3,556.81x = 7,869,473.77
  5. Step 5: Solve for x
    x = 7,869,473.77/3,556.81
  6. Step 6: Final answer
    x = 2,212.51

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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.