Home / 3,102.99-4,279.28-1,923.63

Finding the Fourth Proportional to 3,102.99, 4,279.28 and 1,923.63

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Solution

The fourth proportional to 3,102.99, 4,279.28 and 1,923.63 is: 2,652.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.99 : 4,279.28 = 1,923.63 : x
  2. Step 2: Convert to fraction form
    3,102.99/4,279.28 = 1,923.63/x
  3. Step 3: Cross multiply
    3,102.99x = 4,279.28 × 1,923.63
  4. Step 4: Simplify right side
    3,102.99x = 8,231,741.77
  5. Step 5: Solve for x
    x = 8,231,741.77/3,102.99
  6. Step 6: Final answer
    x = 2,652.84

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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.