Home / 7,142.42-10,707.46-3,447.24

Finding the Fourth Proportional to 7,142.42, 10,707.46 and 3,447.24

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Solution

The fourth proportional to 7,142.42, 10,707.46 and 3,447.24 is: 5,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.42 : 10,707.46 = 3,447.24 : x
  2. Step 2: Convert to fraction form
    7,142.42/10,707.46 = 3,447.24/x
  3. Step 3: Cross multiply
    7,142.42x = 10,707.46 × 3,447.24
  4. Step 4: Simplify right side
    7,142.42x = 36,911,184.41
  5. Step 5: Solve for x
    x = 36,911,184.41/7,142.42
  6. Step 6: Final answer
    x = 5,167.89

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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.