Home / 2,972.36-4,103.87-2,656.62

Finding the Fourth Proportional to 2,972.36, 4,103.87 and 2,656.62

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Solution

The fourth proportional to 2,972.36, 4,103.87 and 2,656.62 is: 3,667.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.36 : 4,103.87 = 2,656.62 : x
  2. Step 2: Convert to fraction form
    2,972.36/4,103.87 = 2,656.62/x
  3. Step 3: Cross multiply
    2,972.36x = 4,103.87 × 2,656.62
  4. Step 4: Simplify right side
    2,972.36x = 10,902,409.84
  5. Step 5: Solve for x
    x = 10,902,409.84/2,972.36
  6. Step 6: Final answer
    x = 3,667.93

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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.