Home / 4,279.12-5,904.73-2,390.78

Finding the Fourth Proportional to 4,279.12, 5,904.73 and 2,390.78

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Solution

The fourth proportional to 4,279.12, 5,904.73 and 2,390.78 is: 3,299.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.12 : 5,904.73 = 2,390.78 : x
  2. Step 2: Convert to fraction form
    4,279.12/5,904.73 = 2,390.78/x
  3. Step 3: Cross multiply
    4,279.12x = 5,904.73 × 2,390.78
  4. Step 4: Simplify right side
    4,279.12x = 14,116,898.19
  5. Step 5: Solve for x
    x = 14,116,898.19/4,279.12
  6. Step 6: Final answer
    x = 3,299.02

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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.