Home / 1,440.03-2,159.13-945.86

Finding the Fourth Proportional to 1,440.03, 2,159.13 and 945.86

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Solution

The fourth proportional to 1,440.03, 2,159.13 and 945.86 is: 1,418.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.03 : 2,159.13 = 945.86 : x
  2. Step 2: Convert to fraction form
    1,440.03/2,159.13 = 945.86/x
  3. Step 3: Cross multiply
    1,440.03x = 2,159.13 × 945.86
  4. Step 4: Simplify right side
    1,440.03x = 2,042,223.91
  5. Step 5: Solve for x
    x = 2,042,223.91/1,440.03
  6. Step 6: Final answer
    x = 1,418.18

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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.