Home / 3,888.56-5,366.86-2,317.58

Finding the Fourth Proportional to 3,888.56, 5,366.86 and 2,317.58

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Solution

The fourth proportional to 3,888.56, 5,366.86 and 2,317.58 is: 3,198.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.56 : 5,366.86 = 2,317.58 : x
  2. Step 2: Convert to fraction form
    3,888.56/5,366.86 = 2,317.58/x
  3. Step 3: Cross multiply
    3,888.56x = 5,366.86 × 2,317.58
  4. Step 4: Simplify right side
    3,888.56x = 12,438,127.40
  5. Step 5: Solve for x
    x = 12,438,127.40/3,888.56
  6. Step 6: Final answer
    x = 3,198.65

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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.