Home / 5,330.88-7,996.48-1,820.80

Finding the Fourth Proportional to 5,330.88, 7,996.48 and 1,820.80

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Solution

The fourth proportional to 5,330.88, 7,996.48 and 1,820.80 is: 2,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.88 : 7,996.48 = 1,820.80 : x
  2. Step 2: Convert to fraction form
    5,330.88/7,996.48 = 1,820.80/x
  3. Step 3: Cross multiply
    5,330.88x = 7,996.48 × 1,820.80
  4. Step 4: Simplify right side
    5,330.88x = 14,559,990.78
  5. Step 5: Solve for x
    x = 14,559,990.78/5,330.88
  6. Step 6: Final answer
    x = 2,731.25

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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.