Home / 2,213.88-3,053.67-1,415.85

Finding the Fourth Proportional to 2,213.88, 3,053.67 and 1,415.85

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Solution

The fourth proportional to 2,213.88, 3,053.67 and 1,415.85 is: 1,952.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.88 : 3,053.67 = 1,415.85 : x
  2. Step 2: Convert to fraction form
    2,213.88/3,053.67 = 1,415.85/x
  3. Step 3: Cross multiply
    2,213.88x = 3,053.67 × 1,415.85
  4. Step 4: Simplify right side
    2,213.88x = 4,323,559.62
  5. Step 5: Solve for x
    x = 4,323,559.62/2,213.88
  6. Step 6: Final answer
    x = 1,952.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.