Home / 1,770.26-2,656.40-1,040.34

Finding the Fourth Proportional to 1,770.26, 2,656.40 and 1,040.34

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Solution

The fourth proportional to 1,770.26, 2,656.40 and 1,040.34 is: 1,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.26 : 2,656.40 = 1,040.34 : x
  2. Step 2: Convert to fraction form
    1,770.26/2,656.40 = 1,040.34/x
  3. Step 3: Cross multiply
    1,770.26x = 2,656.40 × 1,040.34
  4. Step 4: Simplify right side
    1,770.26x = 2,763,563.94
  5. Step 5: Solve for x
    x = 2,763,563.94/1,770.26
  6. Step 6: Final answer
    x = 1,561.11

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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.