Home / 4,279.51-5,905.43-2,390.99

Finding the Fourth Proportional to 4,279.51, 5,905.43 and 2,390.99

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Solution

The fourth proportional to 4,279.51, 5,905.43 and 2,390.99 is: 3,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.51 : 5,905.43 = 2,390.99 : x
  2. Step 2: Convert to fraction form
    4,279.51/5,905.43 = 2,390.99/x
  3. Step 3: Cross multiply
    4,279.51x = 5,905.43 × 2,390.99
  4. Step 4: Simplify right side
    4,279.51x = 14,119,824.08
  5. Step 5: Solve for x
    x = 14,119,824.08/4,279.51
  6. Step 6: Final answer
    x = 3,299.40

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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.