Home / 4,085.96-5,638.80-2,317.72

Finding the Fourth Proportional to 4,085.96, 5,638.80 and 2,317.72

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Solution

The fourth proportional to 4,085.96, 5,638.80 and 2,317.72 is: 3,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.96 : 5,638.80 = 2,317.72 : x
  2. Step 2: Convert to fraction form
    4,085.96/5,638.80 = 2,317.72/x
  3. Step 3: Cross multiply
    4,085.96x = 5,638.80 × 2,317.72
  4. Step 4: Simplify right side
    4,085.96x = 13,069,159.54
  5. Step 5: Solve for x
    x = 13,069,159.54/4,085.96
  6. Step 6: Final answer
    x = 3,198.55

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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.