Home / 2,267.60-3,129.17-1,428.03

Finding the Fourth Proportional to 2,267.60, 3,129.17 and 1,428.03

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Solution

The fourth proportional to 2,267.60, 3,129.17 and 1,428.03 is: 1,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.60 : 3,129.17 = 1,428.03 : x
  2. Step 2: Convert to fraction form
    2,267.60/3,129.17 = 1,428.03/x
  3. Step 3: Cross multiply
    2,267.60x = 3,129.17 × 1,428.03
  4. Step 4: Simplify right side
    2,267.60x = 4,468,541.49
  5. Step 5: Solve for x
    x = 4,468,541.49/2,267.60
  6. Step 6: Final answer
    x = 1,970.61

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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.