Home / 1,416.16-2,123.82-491.47

Finding the Fourth Proportional to 1,416.16, 2,123.82 and 491.47

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Solution

The fourth proportional to 1,416.16, 2,123.82 and 491.47 is: 737.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.16 : 2,123.82 = 491.47 : x
  2. Step 2: Convert to fraction form
    1,416.16/2,123.82 = 491.47/x
  3. Step 3: Cross multiply
    1,416.16x = 2,123.82 × 491.47
  4. Step 4: Simplify right side
    1,416.16x = 1,043,793.82
  5. Step 5: Solve for x
    x = 1,043,793.82/1,416.16
  6. Step 6: Final answer
    x = 737.06

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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.