Home / 1,459.72-2,189.58-1,090.60

Finding the Fourth Proportional to 1,459.72, 2,189.58 and 1,090.60

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Solution

The fourth proportional to 1,459.72, 2,189.58 and 1,090.60 is: 1,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.72 : 2,189.58 = 1,090.60 : x
  2. Step 2: Convert to fraction form
    1,459.72/2,189.58 = 1,090.60/x
  3. Step 3: Cross multiply
    1,459.72x = 2,189.58 × 1,090.60
  4. Step 4: Simplify right side
    1,459.72x = 2,387,955.95
  5. Step 5: Solve for x
    x = 2,387,955.95/1,459.72
  6. Step 6: Final answer
    x = 1,635.90

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1.5x scale

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.