Home / 4,142.31-6,215.90-2,971.05

Finding the Fourth Proportional to 4,142.31, 6,215.90 and 2,971.05

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Solution

The fourth proportional to 4,142.31, 6,215.90 and 2,971.05 is: 4,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.31 : 6,215.90 = 2,971.05 : x
  2. Step 2: Convert to fraction form
    4,142.31/6,215.90 = 2,971.05/x
  3. Step 3: Cross multiply
    4,142.31x = 6,215.90 × 2,971.05
  4. Step 4: Simplify right side
    4,142.31x = 18,467,734.84
  5. Step 5: Solve for x
    x = 18,467,734.84/4,142.31
  6. Step 6: Final answer
    x = 4,458.32

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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.