Home / 3,809.36-5,259.12-2,972

Finding the Fourth Proportional to 3,809.36, 5,259.12 and 2,972

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Solution

The fourth proportional to 3,809.36, 5,259.12 and 2,972 is: 4,103.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.36 : 5,259.12 = 2,972 : x
  2. Step 2: Convert to fraction form
    3,809.36/5,259.12 = 2,972/x
  3. Step 3: Cross multiply
    3,809.36x = 5,259.12 × 2,972
  4. Step 4: Simplify right side
    3,809.36x = 15,630,104.64
  5. Step 5: Solve for x
    x = 15,630,104.64/3,809.36
  6. Step 6: Final answer
    x = 4,103.08

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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.