Home / 3,140.34-4,711.29-2,217.70

Finding the Fourth Proportional to 3,140.34, 4,711.29 and 2,217.70

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Solution

The fourth proportional to 3,140.34, 4,711.29 and 2,217.70 is: 3,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.34 : 4,711.29 = 2,217.70 : x
  2. Step 2: Convert to fraction form
    3,140.34/4,711.29 = 2,217.70/x
  3. Step 3: Cross multiply
    3,140.34x = 4,711.29 × 2,217.70
  4. Step 4: Simplify right side
    3,140.34x = 10,448,216.05
  5. Step 5: Solve for x
    x = 10,448,216.05/3,140.34
  6. Step 6: Final answer
    x = 3,327.10

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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.