Home / 4,211.93-6,317.91-1,290.24

Finding the Fourth Proportional to 4,211.93, 6,317.91 and 1,290.24

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Solution

The fourth proportional to 4,211.93, 6,317.91 and 1,290.24 is: 1,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.93 : 6,317.91 = 1,290.24 : x
  2. Step 2: Convert to fraction form
    4,211.93/6,317.91 = 1,290.24/x
  3. Step 3: Cross multiply
    4,211.93x = 6,317.91 × 1,290.24
  4. Step 4: Simplify right side
    4,211.93x = 8,151,620.20
  5. Step 5: Solve for x
    x = 8,151,620.20/4,211.93
  6. Step 6: Final answer
    x = 1,935.36

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Double scale
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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.