Home / 2,923.16-4,384.26-1,279.40

Finding the Fourth Proportional to 2,923.16, 4,384.26 and 1,279.40

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Solution

The fourth proportional to 2,923.16, 4,384.26 and 1,279.40 is: 1,918.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.16 : 4,384.26 = 1,279.40 : x
  2. Step 2: Convert to fraction form
    2,923.16/4,384.26 = 1,279.40/x
  3. Step 3: Cross multiply
    2,923.16x = 4,384.26 × 1,279.40
  4. Step 4: Simplify right side
    2,923.16x = 5,609,222.24
  5. Step 5: Solve for x
    x = 5,609,222.24/2,923.16
  6. Step 6: Final answer
    x = 1,918.89

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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.