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Finding the Fourth Proportional to 7,098.94, 9,796.44 and 3,955.15

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Solution

The fourth proportional to 7,098.94, 9,796.44 and 3,955.15 is: 5,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.94 : 9,796.44 = 3,955.15 : x
  2. Step 2: Convert to fraction form
    7,098.94/9,796.44 = 3,955.15/x
  3. Step 3: Cross multiply
    7,098.94x = 9,796.44 × 3,955.15
  4. Step 4: Simplify right side
    7,098.94x = 38,746,389.67
  5. Step 5: Solve for x
    x = 38,746,389.67/7,098.94
  6. Step 6: Final answer
    x = 5,458.05

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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.