Home / 1,197.15-1,795.58-319.72

Finding the Fourth Proportional to 1,197.15, 1,795.58 and 319.72

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Solution

The fourth proportional to 1,197.15, 1,795.58 and 319.72 is: 479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.15 : 1,795.58 = 319.72 : x
  2. Step 2: Convert to fraction form
    1,197.15/1,795.58 = 319.72/x
  3. Step 3: Cross multiply
    1,197.15x = 1,795.58 × 319.72
  4. Step 4: Simplify right side
    1,197.15x = 574,073.86
  5. Step 5: Solve for x
    x = 574,073.86/1,197.15
  6. Step 6: Final answer
    x = 479.53

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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.