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Finding the Fourth Proportional to 7,039.44, 10,559.16 and 2,655.72

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Solution

The fourth proportional to 7,039.44, 10,559.16 and 2,655.72 is: 3,983.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.44 : 10,559.16 = 2,655.72 : x
  2. Step 2: Convert to fraction form
    7,039.44/10,559.16 = 2,655.72/x
  3. Step 3: Cross multiply
    7,039.44x = 10,559.16 × 2,655.72
  4. Step 4: Simplify right side
    7,039.44x = 28,042,172.40
  5. Step 5: Solve for x
    x = 28,042,172.40/7,039.44
  6. Step 6: Final answer
    x = 3,983.58

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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.