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Finding the Fourth Proportional to 7,066.80, 10,600.20 and 4,298.90

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Solution

The fourth proportional to 7,066.80, 10,600.20 and 4,298.90 is: 6,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,066.80 : 10,600.20 = 4,298.90 : x
  2. Step 2: Convert to fraction form
    7,066.80/10,600.20 = 4,298.90/x
  3. Step 3: Cross multiply
    7,066.80x = 10,600.20 × 4,298.90
  4. Step 4: Simplify right side
    7,066.80x = 45,569,199.78
  5. Step 5: Solve for x
    x = 45,569,199.78/7,066.80
  6. Step 6: Final answer
    x = 6,448.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.