Home / 7,140.20-10,711.35-2,210.27

Finding the Fourth Proportional to 7,140.20, 10,711.35 and 2,210.27

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Solution

The fourth proportional to 7,140.20, 10,711.35 and 2,210.27 is: 3,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.20 : 10,711.35 = 2,210.27 : x
  2. Step 2: Convert to fraction form
    7,140.20/10,711.35 = 2,210.27/x
  3. Step 3: Cross multiply
    7,140.20x = 10,711.35 × 2,210.27
  4. Step 4: Simplify right side
    7,140.20x = 23,674,922.01
  5. Step 5: Solve for x
    x = 23,674,922.01/7,140.20
  6. Step 6: Final answer
    x = 3,315.72

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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.