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Finding the Fourth Proportional to 1,110.55, 1,665.26 and 590.84

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Solution

The fourth proportional to 1,110.55, 1,665.26 and 590.84 is: 885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.55 : 1,665.26 = 590.84 : x
  2. Step 2: Convert to fraction form
    1,110.55/1,665.26 = 590.84/x
  3. Step 3: Cross multiply
    1,110.55x = 1,665.26 × 590.84
  4. Step 4: Simplify right side
    1,110.55x = 983,890.94
  5. Step 5: Solve for x
    x = 983,890.94/1,110.55
  6. Step 6: Final answer
    x = 885.95

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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.