Home / 7,073.21-10,612.55-2,142.90

Finding the Fourth Proportional to 7,073.21, 10,612.55 and 2,142.90

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Solution

The fourth proportional to 7,073.21, 10,612.55 and 2,142.90 is: 3,215.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.21 : 10,612.55 = 2,142.90 : x
  2. Step 2: Convert to fraction form
    7,073.21/10,612.55 = 2,142.90/x
  3. Step 3: Cross multiply
    7,073.21x = 10,612.55 × 2,142.90
  4. Step 4: Simplify right side
    7,073.21x = 22,741,580.33
  5. Step 5: Solve for x
    x = 22,741,580.33/7,073.21
  6. Step 6: Final answer
    x = 3,215.17

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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.