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Finding the Fourth Proportional to 1,325.10, 1,829.23 and 953.90

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Solution

The fourth proportional to 1,325.10, 1,829.23 and 953.90 is: 1,316.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.10 : 1,829.23 = 953.90 : x
  2. Step 2: Convert to fraction form
    1,325.10/1,829.23 = 953.90/x
  3. Step 3: Cross multiply
    1,325.10x = 1,829.23 × 953.90
  4. Step 4: Simplify right side
    1,325.10x = 1,744,902.50
  5. Step 5: Solve for x
    x = 1,744,902.50/1,325.10
  6. Step 6: Final answer
    x = 1,316.81

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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.