Home / 1,156.23-1,734.33-290.55

Finding the Fourth Proportional to 1,156.23, 1,734.33 and 290.55

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Solution

The fourth proportional to 1,156.23, 1,734.33 and 290.55 is: 435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.23 : 1,734.33 = 290.55 : x
  2. Step 2: Convert to fraction form
    1,156.23/1,734.33 = 290.55/x
  3. Step 3: Cross multiply
    1,156.23x = 1,734.33 × 290.55
  4. Step 4: Simplify right side
    1,156.23x = 503,909.58
  5. Step 5: Solve for x
    x = 503,909.58/1,156.23
  6. Step 6: Final answer
    x = 435.82

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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.