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Finding the Fourth Proportional to 4,710.11, 7,065.20 and 1,200.12

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Solution

The fourth proportional to 4,710.11, 7,065.20 and 1,200.12 is: 1,800.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,710.11 : 7,065.20 = 1,200.12 : x
  2. Step 2: Convert to fraction form
    4,710.11/7,065.20 = 1,200.12/x
  3. Step 3: Cross multiply
    4,710.11x = 7,065.20 × 1,200.12
  4. Step 4: Simplify right side
    4,710.11x = 8,479,087.82
  5. Step 5: Solve for x
    x = 8,479,087.82/4,710.11
  6. Step 6: Final answer
    x = 1,800.19

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1.5x scale

Why These Related Problems?

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