Home / 1,081.17-1,492.05-609.07

Finding the Fourth Proportional to 1,081.17, 1,492.05 and 609.07

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Solution

The fourth proportional to 1,081.17, 1,492.05 and 609.07 is: 840.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.17 : 1,492.05 = 609.07 : x
  2. Step 2: Convert to fraction form
    1,081.17/1,492.05 = 609.07/x
  3. Step 3: Cross multiply
    1,081.17x = 1,492.05 × 609.07
  4. Step 4: Simplify right side
    1,081.17x = 908,767.97
  5. Step 5: Solve for x
    x = 908,767.97/1,081.17
  6. Step 6: Final answer
    x = 840.54

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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.