Home / 5,019.48-7,529.30-1,321.57

Finding the Fourth Proportional to 5,019.48, 7,529.30 and 1,321.57

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Solution

The fourth proportional to 5,019.48, 7,529.30 and 1,321.57 is: 1,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.48 : 7,529.30 = 1,321.57 : x
  2. Step 2: Convert to fraction form
    5,019.48/7,529.30 = 1,321.57/x
  3. Step 3: Cross multiply
    5,019.48x = 7,529.30 × 1,321.57
  4. Step 4: Simplify right side
    5,019.48x = 9,950,459.35
  5. Step 5: Solve for x
    x = 9,950,459.35/5,019.48
  6. Step 6: Final answer
    x = 1,982.37

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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.