Home / 1,090.98-1,492.66-1,086.38

Finding the Fourth Proportional to 1,090.98, 1,492.66 and 1,086.38

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Solution

The fourth proportional to 1,090.98, 1,492.66 and 1,086.38 is: 1,486.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.98 : 1,492.66 = 1,086.38 : x
  2. Step 2: Convert to fraction form
    1,090.98/1,492.66 = 1,086.38/x
  3. Step 3: Cross multiply
    1,090.98x = 1,492.66 × 1,086.38
  4. Step 4: Simplify right side
    1,090.98x = 1,621,595.97
  5. Step 5: Solve for x
    x = 1,621,595.97/1,090.98
  6. Step 6: Final answer
    x = 1,486.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.