Home / 1,513.08-2,269.56-417.42

Finding the Fourth Proportional to 1,513.08, 2,269.56 and 417.42

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Solution

The fourth proportional to 1,513.08, 2,269.56 and 417.42 is: 626.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.08 : 2,269.56 = 417.42 : x
  2. Step 2: Convert to fraction form
    1,513.08/2,269.56 = 417.42/x
  3. Step 3: Cross multiply
    1,513.08x = 2,269.56 × 417.42
  4. Step 4: Simplify right side
    1,513.08x = 947,361.30
  5. Step 5: Solve for x
    x = 947,361.30/1,513.08
  6. Step 6: Final answer
    x = 626.11

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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.