Home / 1,157.21-1,598.45-936.99

Finding the Fourth Proportional to 1,157.21, 1,598.45 and 936.99

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Solution

The fourth proportional to 1,157.21, 1,598.45 and 936.99 is: 1,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.21 : 1,598.45 = 936.99 : x
  2. Step 2: Convert to fraction form
    1,157.21/1,598.45 = 936.99/x
  3. Step 3: Cross multiply
    1,157.21x = 1,598.45 × 936.99
  4. Step 4: Simplify right side
    1,157.21x = 1,497,731.67
  5. Step 5: Solve for x
    x = 1,497,731.67/1,157.21
  6. Step 6: Final answer
    x = 1,294.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.