Home / 2,213.93-3,054.49-1,428.50

Finding the Fourth Proportional to 2,213.93, 3,054.49 and 1,428.50

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Solution

The fourth proportional to 2,213.93, 3,054.49 and 1,428.50 is: 1,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.93 : 3,054.49 = 1,428.50 : x
  2. Step 2: Convert to fraction form
    2,213.93/3,054.49 = 1,428.50/x
  3. Step 3: Cross multiply
    2,213.93x = 3,054.49 × 1,428.50
  4. Step 4: Simplify right side
    2,213.93x = 4,363,320.12
  5. Step 5: Solve for x
    x = 4,363,320.12/2,213.93
  6. Step 6: Final answer
    x = 1,970.85

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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.