Home / 1,772.67-2,659.55-1,040.70

Finding the Fourth Proportional to 1,772.67, 2,659.55 and 1,040.70

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Solution

The fourth proportional to 1,772.67, 2,659.55 and 1,040.70 is: 1,561.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.67 : 2,659.55 = 1,040.70 : x
  2. Step 2: Convert to fraction form
    1,772.67/2,659.55 = 1,040.70/x
  3. Step 3: Cross multiply
    1,772.67x = 2,659.55 × 1,040.70
  4. Step 4: Simplify right side
    1,772.67x = 2,767,788.48
  5. Step 5: Solve for x
    x = 2,767,788.48/1,772.67
  6. Step 6: Final answer
    x = 1,561.37

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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.