Home / 5,642.26-7,786.35-3,124.45

Finding the Fourth Proportional to 5,642.26, 7,786.35 and 3,124.45

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Solution

The fourth proportional to 5,642.26, 7,786.35 and 3,124.45 is: 4,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.26 : 7,786.35 = 3,124.45 : x
  2. Step 2: Convert to fraction form
    5,642.26/7,786.35 = 3,124.45/x
  3. Step 3: Cross multiply
    5,642.26x = 7,786.35 × 3,124.45
  4. Step 4: Simplify right side
    5,642.26x = 24,328,061.26
  5. Step 5: Solve for x
    x = 24,328,061.26/5,642.26
  6. Step 6: Final answer
    x = 4,311.76

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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.