Home / 1,769.70-2,652.12-1,038.30

Finding the Fourth Proportional to 1,769.70, 2,652.12 and 1,038.30

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Solution

The fourth proportional to 1,769.70, 2,652.12 and 1,038.30 is: 1,556.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.70 : 2,652.12 = 1,038.30 : x
  2. Step 2: Convert to fraction form
    1,769.70/2,652.12 = 1,038.30/x
  3. Step 3: Cross multiply
    1,769.70x = 2,652.12 × 1,038.30
  4. Step 4: Simplify right side
    1,769.70x = 2,753,696.20
  5. Step 5: Solve for x
    x = 2,753,696.20/1,769.70
  6. Step 6: Final answer
    x = 1,556.02

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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.