Home / 5,577.12-8,360.70-2,116.80

Finding the Fourth Proportional to 5,577.12, 8,360.70 and 2,116.80

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Solution

The fourth proportional to 5,577.12, 8,360.70 and 2,116.80 is: 3,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,577.12 : 8,360.70 = 2,116.80 : x
  2. Step 2: Convert to fraction form
    5,577.12/8,360.70 = 2,116.80/x
  3. Step 3: Cross multiply
    5,577.12x = 8,360.70 × 2,116.80
  4. Step 4: Simplify right side
    5,577.12x = 17,697,929.76
  5. Step 5: Solve for x
    x = 17,697,929.76/5,577.12
  6. Step 6: Final answer
    x = 3,173.31

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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.