Home / 7,690.50-11,536.80-2,759.10

Finding the Fourth Proportional to 7,690.50, 11,536.80 and 2,759.10

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Solution

The fourth proportional to 7,690.50, 11,536.80 and 2,759.10 is: 4,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.50 : 11,536.80 = 2,759.10 : x
  2. Step 2: Convert to fraction form
    7,690.50/11,536.80 = 2,759.10/x
  3. Step 3: Cross multiply
    7,690.50x = 11,536.80 × 2,759.10
  4. Step 4: Simplify right side
    7,690.50x = 31,831,184.88
  5. Step 5: Solve for x
    x = 31,831,184.88/7,690.50
  6. Step 6: Final answer
    x = 4,139.03

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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.