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Finding the Fourth Proportional to 2,905.38, 4,358.07 and 958.14

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Solution

The fourth proportional to 2,905.38, 4,358.07 and 958.14 is: 1,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.38 : 4,358.07 = 958.14 : x
  2. Step 2: Convert to fraction form
    2,905.38/4,358.07 = 958.14/x
  3. Step 3: Cross multiply
    2,905.38x = 4,358.07 × 958.14
  4. Step 4: Simplify right side
    2,905.38x = 4,175,641.19
  5. Step 5: Solve for x
    x = 4,175,641.19/2,905.38
  6. Step 6: Final answer
    x = 1,437.21

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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.