Home / 5,225.42-7,839.48-1,939.45

Finding the Fourth Proportional to 5,225.42, 7,839.48 and 1,939.45

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Solution

The fourth proportional to 5,225.42, 7,839.48 and 1,939.45 is: 2,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.42 : 7,839.48 = 1,939.45 : x
  2. Step 2: Convert to fraction form
    5,225.42/7,839.48 = 1,939.45/x
  3. Step 3: Cross multiply
    5,225.42x = 7,839.48 × 1,939.45
  4. Step 4: Simplify right side
    5,225.42x = 15,204,279.49
  5. Step 5: Solve for x
    x = 15,204,279.49/5,225.42
  6. Step 6: Final answer
    x = 2,909.68

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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.