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Finding the Fourth Proportional to 1,083.48, 1,495.21 and 586.12

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Solution

The fourth proportional to 1,083.48, 1,495.21 and 586.12 is: 808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.48 : 1,495.21 = 586.12 : x
  2. Step 2: Convert to fraction form
    1,083.48/1,495.21 = 586.12/x
  3. Step 3: Cross multiply
    1,083.48x = 1,495.21 × 586.12
  4. Step 4: Simplify right side
    1,083.48x = 876,373.98
  5. Step 5: Solve for x
    x = 876,373.98/1,083.48
  6. Step 6: Final answer
    x = 808.85

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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.