Home / 4,857.30-7,279.92-2,779.02

Finding the Fourth Proportional to 4,857.30, 7,279.92 and 2,779.02

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Solution

The fourth proportional to 4,857.30, 7,279.92 and 2,779.02 is: 4,165.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,857.30 : 7,279.92 = 2,779.02 : x
  2. Step 2: Convert to fraction form
    4,857.30/7,279.92 = 2,779.02/x
  3. Step 3: Cross multiply
    4,857.30x = 7,279.92 × 2,779.02
  4. Step 4: Simplify right side
    4,857.30x = 20,231,043.28
  5. Step 5: Solve for x
    x = 20,231,043.28/4,857.30
  6. Step 6: Final answer
    x = 4,165.08

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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.