Home / 2,120.73-2,925.13-1,492.57

Finding the Fourth Proportional to 2,120.73, 2,925.13 and 1,492.57

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Solution

The fourth proportional to 2,120.73, 2,925.13 and 1,492.57 is: 2,058.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.73 : 2,925.13 = 1,492.57 : x
  2. Step 2: Convert to fraction form
    2,120.73/2,925.13 = 1,492.57/x
  3. Step 3: Cross multiply
    2,120.73x = 2,925.13 × 1,492.57
  4. Step 4: Simplify right side
    2,120.73x = 4,365,961.28
  5. Step 5: Solve for x
    x = 4,365,961.28/2,120.73
  6. Step 6: Final answer
    x = 2,058.71

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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.