Home / 1,459.35-2,189.30-1,230.39

Finding the Fourth Proportional to 1,459.35, 2,189.30 and 1,230.39

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Solution

The fourth proportional to 1,459.35, 2,189.30 and 1,230.39 is: 1,845.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.35 : 2,189.30 = 1,230.39 : x
  2. Step 2: Convert to fraction form
    1,459.35/2,189.30 = 1,230.39/x
  3. Step 3: Cross multiply
    1,459.35x = 2,189.30 × 1,230.39
  4. Step 4: Simplify right side
    1,459.35x = 2,693,686.68
  5. Step 5: Solve for x
    x = 2,693,686.68/1,459.35
  6. Step 6: Final answer
    x = 1,845.81

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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.