Home / 7,140.52-10,711.32-2,210.68

Finding the Fourth Proportional to 7,140.52, 10,711.32 and 2,210.68

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Solution

The fourth proportional to 7,140.52, 10,711.32 and 2,210.68 is: 3,316.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.52 : 10,711.32 = 2,210.68 : x
  2. Step 2: Convert to fraction form
    7,140.52/10,711.32 = 2,210.68/x
  3. Step 3: Cross multiply
    7,140.52x = 10,711.32 × 2,210.68
  4. Step 4: Simplify right side
    7,140.52x = 23,679,300.90
  5. Step 5: Solve for x
    x = 23,679,300.90/7,140.52
  6. Step 6: Final answer
    x = 3,316.19

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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.