Home / 6,071.78-9,107.49-1,911.80

Finding the Fourth Proportional to 6,071.78, 9,107.49 and 1,911.80

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Solution

The fourth proportional to 6,071.78, 9,107.49 and 1,911.80 is: 2,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,071.78 : 9,107.49 = 1,911.80 : x
  2. Step 2: Convert to fraction form
    6,071.78/9,107.49 = 1,911.80/x
  3. Step 3: Cross multiply
    6,071.78x = 9,107.49 × 1,911.80
  4. Step 4: Simplify right side
    6,071.78x = 17,411,699.38
  5. Step 5: Solve for x
    x = 17,411,699.38/6,071.78
  6. Step 6: Final answer
    x = 2,867.64

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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.