Home / 3,290.58-4,935.87-1,317.11

Finding the Fourth Proportional to 3,290.58, 4,935.87 and 1,317.11

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Solution

The fourth proportional to 3,290.58, 4,935.87 and 1,317.11 is: 1,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.58 : 4,935.87 = 1,317.11 : x
  2. Step 2: Convert to fraction form
    3,290.58/4,935.87 = 1,317.11/x
  3. Step 3: Cross multiply
    3,290.58x = 4,935.87 × 1,317.11
  4. Step 4: Simplify right side
    3,290.58x = 6,501,059.06
  5. Step 5: Solve for x
    x = 6,501,059.06/3,290.58
  6. Step 6: Final answer
    x = 1,975.66

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Similar ratio
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1.5x scale

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.