Home / 2,214.11-3,055.42-1,428.16

Finding the Fourth Proportional to 2,214.11, 3,055.42 and 1,428.16

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Solution

The fourth proportional to 2,214.11, 3,055.42 and 1,428.16 is: 1,970.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.11 : 3,055.42 = 1,428.16 : x
  2. Step 2: Convert to fraction form
    2,214.11/3,055.42 = 1,428.16/x
  3. Step 3: Cross multiply
    2,214.11x = 3,055.42 × 1,428.16
  4. Step 4: Simplify right side
    2,214.11x = 4,363,619.91
  5. Step 5: Solve for x
    x = 4,363,619.91/2,214.11
  6. Step 6: Final answer
    x = 1,970.82

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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.