Home / 3,995.40-5,513.67-2,317.80

Finding the Fourth Proportional to 3,995.40, 5,513.67 and 2,317.80

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Solution

The fourth proportional to 3,995.40, 5,513.67 and 2,317.80 is: 3,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.40 : 5,513.67 = 2,317.80 : x
  2. Step 2: Convert to fraction form
    3,995.40/5,513.67 = 2,317.80/x
  3. Step 3: Cross multiply
    3,995.40x = 5,513.67 × 2,317.80
  4. Step 4: Simplify right side
    3,995.40x = 12,779,605.00
  5. Step 5: Solve for x
    x = 12,779,605.00/3,995.40
  6. Step 6: Final answer
    x = 3,198.58

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1.5x scale

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.