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Finding the Fourth Proportional to 7,100.02, 9,798.06 and 3,956.32

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Solution

The fourth proportional to 7,100.02, 9,798.06 and 3,956.32 is: 5,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100.02 : 9,798.06 = 3,956.32 : x
  2. Step 2: Convert to fraction form
    7,100.02/9,798.06 = 3,956.32/x
  3. Step 3: Cross multiply
    7,100.02x = 9,798.06 × 3,956.32
  4. Step 4: Simplify right side
    7,100.02x = 38,764,260.74
  5. Step 5: Solve for x
    x = 38,764,260.74/7,100.02
  6. Step 6: Final answer
    x = 5,459.74

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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.