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Finding the Fourth Proportional to 1,462.79, 2,194.09 and 538.18

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Solution

The fourth proportional to 1,462.79, 2,194.09 and 538.18 is: 807.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.79 : 2,194.09 = 538.18 : x
  2. Step 2: Convert to fraction form
    1,462.79/2,194.09 = 538.18/x
  3. Step 3: Cross multiply
    1,462.79x = 2,194.09 × 538.18
  4. Step 4: Simplify right side
    1,462.79x = 1,180,808.53
  5. Step 5: Solve for x
    x = 1,180,808.53/1,462.79
  6. Step 6: Final answer
    x = 807.23

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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.