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Finding the Fourth Proportional to 7,090.44, 9,761.14 and 5,319.08

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Solution

The fourth proportional to 7,090.44, 9,761.14 and 5,319.08 is: 7,322.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.44 : 9,761.14 = 5,319.08 : x
  2. Step 2: Convert to fraction form
    7,090.44/9,761.14 = 5,319.08/x
  3. Step 3: Cross multiply
    7,090.44x = 9,761.14 × 5,319.08
  4. Step 4: Simplify right side
    7,090.44x = 51,920,284.55
  5. Step 5: Solve for x
    x = 51,920,284.55/7,090.44
  6. Step 6: Final answer
    x = 7,322.58

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1.5x scale

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.