Home / 1,081.34-1,492.14-609.16

Finding the Fourth Proportional to 1,081.34, 1,492.14 and 609.16

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Solution

The fourth proportional to 1,081.34, 1,492.14 and 609.16 is: 840.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.34 : 1,492.14 = 609.16 : x
  2. Step 2: Convert to fraction form
    1,081.34/1,492.14 = 609.16/x
  3. Step 3: Cross multiply
    1,081.34x = 1,492.14 × 609.16
  4. Step 4: Simplify right side
    1,081.34x = 908,948.96
  5. Step 5: Solve for x
    x = 908,948.96/1,081.34
  6. Step 6: Final answer
    x = 840.58

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1.5x scale

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.