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Finding the Fourth Proportional to 7,020.16, 10,530.19 and 2,859.19

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Solution

The fourth proportional to 7,020.16, 10,530.19 and 2,859.19 is: 4,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.16 : 10,530.19 = 2,859.19 : x
  2. Step 2: Convert to fraction form
    7,020.16/10,530.19 = 2,859.19/x
  3. Step 3: Cross multiply
    7,020.16x = 10,530.19 × 2,859.19
  4. Step 4: Simplify right side
    7,020.16x = 30,107,747.00
  5. Step 5: Solve for x
    x = 30,107,747.00/7,020.16
  6. Step 6: Final answer
    x = 4,288.76

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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.