Home / 1,412.13-2,118.33-437.97

Finding the Fourth Proportional to 1,412.13, 2,118.33 and 437.97

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Solution

The fourth proportional to 1,412.13, 2,118.33 and 437.97 is: 657.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.13 : 2,118.33 = 437.97 : x
  2. Step 2: Convert to fraction form
    1,412.13/2,118.33 = 437.97/x
  3. Step 3: Cross multiply
    1,412.13x = 2,118.33 × 437.97
  4. Step 4: Simplify right side
    1,412.13x = 927,764.99
  5. Step 5: Solve for x
    x = 927,764.99/1,412.13
  6. Step 6: Final answer
    x = 657.00

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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.