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Finding the Fourth Proportional to 1,806.63, 2,492.34 and 1,584.90

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Solution

The fourth proportional to 1,806.63, 2,492.34 and 1,584.90 is: 2,186.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.63 : 2,492.34 = 1,584.90 : x
  2. Step 2: Convert to fraction form
    1,806.63/2,492.34 = 1,584.90/x
  3. Step 3: Cross multiply
    1,806.63x = 2,492.34 × 1,584.90
  4. Step 4: Simplify right side
    1,806.63x = 3,950,109.67
  5. Step 5: Solve for x
    x = 3,950,109.67/1,806.63
  6. Step 6: Final answer
    x = 2,186.45

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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.