Home / 1,492.38-2,238.56-1,028.76

Finding the Fourth Proportional to 1,492.38, 2,238.56 and 1,028.76

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Solution

The fourth proportional to 1,492.38, 2,238.56 and 1,028.76 is: 1,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492.38 : 2,238.56 = 1,028.76 : x
  2. Step 2: Convert to fraction form
    1,492.38/2,238.56 = 1,028.76/x
  3. Step 3: Cross multiply
    1,492.38x = 2,238.56 × 1,028.76
  4. Step 4: Simplify right side
    1,492.38x = 2,302,935.84
  5. Step 5: Solve for x
    x = 2,302,935.84/1,492.38
  6. Step 6: Final answer
    x = 1,543.13

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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.