Home / 1,747.85-2,619.27-1,315.31

Finding the Fourth Proportional to 1,747.85, 2,619.27 and 1,315.31

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Solution

The fourth proportional to 1,747.85, 2,619.27 and 1,315.31 is: 1,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.85 : 2,619.27 = 1,315.31 : x
  2. Step 2: Convert to fraction form
    1,747.85/2,619.27 = 1,315.31/x
  3. Step 3: Cross multiply
    1,747.85x = 2,619.27 × 1,315.31
  4. Step 4: Simplify right side
    1,747.85x = 3,445,138.93
  5. Step 5: Solve for x
    x = 3,445,138.93/1,747.85
  6. Step 6: Final answer
    x = 1,971.08

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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.