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Finding the Fourth Proportional to 1,571.99, 2,358.36 and 476.28

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Solution

The fourth proportional to 1,571.99, 2,358.36 and 476.28 is: 714.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.99 : 2,358.36 = 476.28 : x
  2. Step 2: Convert to fraction form
    1,571.99/2,358.36 = 476.28/x
  3. Step 3: Cross multiply
    1,571.99x = 2,358.36 × 476.28
  4. Step 4: Simplify right side
    1,571.99x = 1,123,239.70
  5. Step 5: Solve for x
    x = 1,123,239.70/1,571.99
  6. Step 6: Final answer
    x = 714.54

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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.