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Finding the Fourth Proportional to 2,950.07, 4,071.16 and 1,690.97

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Solution

The fourth proportional to 2,950.07, 4,071.16 and 1,690.97 is: 2,333.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.07 : 4,071.16 = 1,690.97 : x
  2. Step 2: Convert to fraction form
    2,950.07/4,071.16 = 1,690.97/x
  3. Step 3: Cross multiply
    2,950.07x = 4,071.16 × 1,690.97
  4. Step 4: Simplify right side
    2,950.07x = 6,884,215.38
  5. Step 5: Solve for x
    x = 6,884,215.38/2,950.07
  6. Step 6: Final answer
    x = 2,333.57

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Half scale
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Double scale
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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.