Home / 7,140.49-10,711.78-2,210.56

Finding the Fourth Proportional to 7,140.49, 10,711.78 and 2,210.56

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Solution

The fourth proportional to 7,140.49, 10,711.78 and 2,210.56 is: 3,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.49 : 10,711.78 = 2,210.56 : x
  2. Step 2: Convert to fraction form
    7,140.49/10,711.78 = 2,210.56/x
  3. Step 3: Cross multiply
    7,140.49x = 10,711.78 × 2,210.56
  4. Step 4: Simplify right side
    7,140.49x = 23,679,000.09
  5. Step 5: Solve for x
    x = 23,679,000.09/7,140.49
  6. Step 6: Final answer
    x = 3,316.16

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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.