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Finding the Fourth Proportional to 3,145.34, 4,718.01 and 954.29

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Solution

The fourth proportional to 3,145.34, 4,718.01 and 954.29 is: 1,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.34 : 4,718.01 = 954.29 : x
  2. Step 2: Convert to fraction form
    3,145.34/4,718.01 = 954.29/x
  3. Step 3: Cross multiply
    3,145.34x = 4,718.01 × 954.29
  4. Step 4: Simplify right side
    3,145.34x = 4,502,349.76
  5. Step 5: Solve for x
    x = 4,502,349.76/3,145.34
  6. Step 6: Final answer
    x = 1,431.44

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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.