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Finding the Fourth Proportional to 1,860.77, 2,790.25 and 1,492.63

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Solution

The fourth proportional to 1,860.77, 2,790.25 and 1,492.63 is: 2,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.77 : 2,790.25 = 1,492.63 : x
  2. Step 2: Convert to fraction form
    1,860.77/2,790.25 = 1,492.63/x
  3. Step 3: Cross multiply
    1,860.77x = 2,790.25 × 1,492.63
  4. Step 4: Simplify right side
    1,860.77x = 4,164,800.15
  5. Step 5: Solve for x
    x = 4,164,800.15/1,860.77
  6. Step 6: Final answer
    x = 2,238.21

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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.