Home / 6,143.63-9,215.45-2,245.91

Finding the Fourth Proportional to 6,143.63, 9,215.45 and 2,245.91

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Solution

The fourth proportional to 6,143.63, 9,215.45 and 2,245.91 is: 3,368.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.63 : 9,215.45 = 2,245.91 : x
  2. Step 2: Convert to fraction form
    6,143.63/9,215.45 = 2,245.91/x
  3. Step 3: Cross multiply
    6,143.63x = 9,215.45 × 2,245.91
  4. Step 4: Simplify right side
    6,143.63x = 20,697,071.31
  5. Step 5: Solve for x
    x = 20,697,071.31/6,143.63
  6. Step 6: Final answer
    x = 3,368.87

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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.