Home / 2,923.93-4,385.99-1,279.63

Finding the Fourth Proportional to 2,923.93, 4,385.99 and 1,279.63

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Solution

The fourth proportional to 2,923.93, 4,385.99 and 1,279.63 is: 1,919.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.93 : 4,385.99 = 1,279.63 : x
  2. Step 2: Convert to fraction form
    2,923.93/4,385.99 = 1,279.63/x
  3. Step 3: Cross multiply
    2,923.93x = 4,385.99 × 1,279.63
  4. Step 4: Simplify right side
    2,923.93x = 5,612,444.38
  5. Step 5: Solve for x
    x = 5,612,444.38/2,923.93
  6. Step 6: Final answer
    x = 1,919.49

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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.