Home / 3,421.90-5,133.39-1,475.47

Finding the Fourth Proportional to 3,421.90, 5,133.39 and 1,475.47

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Solution

The fourth proportional to 3,421.90, 5,133.39 and 1,475.47 is: 2,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.90 : 5,133.39 = 1,475.47 : x
  2. Step 2: Convert to fraction form
    3,421.90/5,133.39 = 1,475.47/x
  3. Step 3: Cross multiply
    3,421.90x = 5,133.39 × 1,475.47
  4. Step 4: Simplify right side
    3,421.90x = 7,574,162.94
  5. Step 5: Solve for x
    x = 7,574,162.94/3,421.90
  6. Step 6: Final answer
    x = 2,213.44

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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.