Home / 1,513.05-2,269.11-417.15

Finding the Fourth Proportional to 1,513.05, 2,269.11 and 417.15

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Solution

The fourth proportional to 1,513.05, 2,269.11 and 417.15 is: 625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.05 : 2,269.11 = 417.15 : x
  2. Step 2: Convert to fraction form
    1,513.05/2,269.11 = 417.15/x
  3. Step 3: Cross multiply
    1,513.05x = 2,269.11 × 417.15
  4. Step 4: Simplify right side
    1,513.05x = 946,560.80
  5. Step 5: Solve for x
    x = 946,560.80/1,513.05
  6. Step 6: Final answer
    x = 625.60

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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.