Home / 3,287.51-4,923.21-2,113.82

Finding the Fourth Proportional to 3,287.51, 4,923.21 and 2,113.82

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Solution

The fourth proportional to 3,287.51, 4,923.21 and 2,113.82 is: 3,165.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.51 : 4,923.21 = 2,113.82 : x
  2. Step 2: Convert to fraction form
    3,287.51/4,923.21 = 2,113.82/x
  3. Step 3: Cross multiply
    3,287.51x = 4,923.21 × 2,113.82
  4. Step 4: Simplify right side
    3,287.51x = 10,406,779.76
  5. Step 5: Solve for x
    x = 10,406,779.76/3,287.51
  6. Step 6: Final answer
    x = 3,165.55

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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.