Home / 1,456.06-2,009.70-889.09

Finding the Fourth Proportional to 1,456.06, 2,009.70 and 889.09

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Solution

The fourth proportional to 1,456.06, 2,009.70 and 889.09 is: 1,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.06 : 2,009.70 = 889.09 : x
  2. Step 2: Convert to fraction form
    1,456.06/2,009.70 = 889.09/x
  3. Step 3: Cross multiply
    1,456.06x = 2,009.70 × 889.09
  4. Step 4: Simplify right side
    1,456.06x = 1,786,802.92
  5. Step 5: Solve for x
    x = 1,786,802.92/1,456.06
  6. Step 6: Final answer
    x = 1,227.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.