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Finding the Fourth Proportional to 7,210.94, 10,817.60 and 2,213.19

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Solution

The fourth proportional to 7,210.94, 10,817.60 and 2,213.19 is: 3,320.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.94 : 10,817.60 = 2,213.19 : x
  2. Step 2: Convert to fraction form
    7,210.94/10,817.60 = 2,213.19/x
  3. Step 3: Cross multiply
    7,210.94x = 10,817.60 × 2,213.19
  4. Step 4: Simplify right side
    7,210.94x = 23,941,352.51
  5. Step 5: Solve for x
    x = 23,941,352.51/7,210.94
  6. Step 6: Final answer
    x = 3,320.14

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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.