Home / 7,070.80-9,749.64-5,074.96

Finding the Fourth Proportional to 7,070.80, 9,749.64 and 5,074.96

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Solution

The fourth proportional to 7,070.80, 9,749.64 and 5,074.96 is: 6,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.80 : 9,749.64 = 5,074.96 : x
  2. Step 2: Convert to fraction form
    7,070.80/9,749.64 = 5,074.96/x
  3. Step 3: Cross multiply
    7,070.80x = 9,749.64 × 5,074.96
  4. Step 4: Simplify right side
    7,070.80x = 49,479,033.01
  5. Step 5: Solve for x
    x = 49,479,033.01/7,070.80
  6. Step 6: Final answer
    x = 6,997.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.