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Finding the Fourth Proportional to 1,341.75, 2,012.63 and 476.09

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Solution

The fourth proportional to 1,341.75, 2,012.63 and 476.09 is: 714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.75 : 2,012.63 = 476.09 : x
  2. Step 2: Convert to fraction form
    1,341.75/2,012.63 = 476.09/x
  3. Step 3: Cross multiply
    1,341.75x = 2,012.63 × 476.09
  4. Step 4: Simplify right side
    1,341.75x = 958,193.02
  5. Step 5: Solve for x
    x = 958,193.02/1,341.75
  6. Step 6: Final answer
    x = 714.14

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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.