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Finding the Fourth Proportional to 1,459.91, 2,189.74 and 582.38

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Solution

The fourth proportional to 1,459.91, 2,189.74 and 582.38 is: 873.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.91 : 2,189.74 = 582.38 : x
  2. Step 2: Convert to fraction form
    1,459.91/2,189.74 = 582.38/x
  3. Step 3: Cross multiply
    1,459.91x = 2,189.74 × 582.38
  4. Step 4: Simplify right side
    1,459.91x = 1,275,249.83
  5. Step 5: Solve for x
    x = 1,275,249.83/1,459.91
  6. Step 6: Final answer
    x = 873.52

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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.