Home / 1,769.92-2,656.15-1,427.39

Finding the Fourth Proportional to 1,769.92, 2,656.15 and 1,427.39

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Solution

The fourth proportional to 1,769.92, 2,656.15 and 1,427.39 is: 2,142.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.92 : 2,656.15 = 1,427.39 : x
  2. Step 2: Convert to fraction form
    1,769.92/2,656.15 = 1,427.39/x
  3. Step 3: Cross multiply
    1,769.92x = 2,656.15 × 1,427.39
  4. Step 4: Simplify right side
    1,769.92x = 3,791,355.06
  5. Step 5: Solve for x
    x = 3,791,355.06/1,769.92
  6. Step 6: Final answer
    x = 2,142.11

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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.