Home / 3,110.36-4,291.86-1,713.20

Finding the Fourth Proportional to 3,110.36, 4,291.86 and 1,713.20

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Solution

The fourth proportional to 3,110.36, 4,291.86 and 1,713.20 is: 2,363.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.36 : 4,291.86 = 1,713.20 : x
  2. Step 2: Convert to fraction form
    3,110.36/4,291.86 = 1,713.20/x
  3. Step 3: Cross multiply
    3,110.36x = 4,291.86 × 1,713.20
  4. Step 4: Simplify right side
    3,110.36x = 7,352,814.55
  5. Step 5: Solve for x
    x = 7,352,814.55/3,110.36
  6. Step 6: Final answer
    x = 2,363.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.