Home / 1,081.74-1,492.60-609.66

Finding the Fourth Proportional to 1,081.74, 1,492.60 and 609.66

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Solution

The fourth proportional to 1,081.74, 1,492.60 and 609.66 is: 841.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.74 : 1,492.60 = 609.66 : x
  2. Step 2: Convert to fraction form
    1,081.74/1,492.60 = 609.66/x
  3. Step 3: Cross multiply
    1,081.74x = 1,492.60 × 609.66
  4. Step 4: Simplify right side
    1,081.74x = 909,978.52
  5. Step 5: Solve for x
    x = 909,978.52/1,081.74
  6. Step 6: Final answer
    x = 841.22

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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.