Home / 2,810.80-4,224.30-2,454.40

Finding the Fourth Proportional to 2,810.80, 4,224.30 and 2,454.40

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Solution

The fourth proportional to 2,810.80, 4,224.30 and 2,454.40 is: 3,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.80 : 4,224.30 = 2,454.40 : x
  2. Step 2: Convert to fraction form
    2,810.80/4,224.30 = 2,454.40/x
  3. Step 3: Cross multiply
    2,810.80x = 4,224.30 × 2,454.40
  4. Step 4: Simplify right side
    2,810.80x = 10,368,121.92
  5. Step 5: Solve for x
    x = 10,368,121.92/2,810.80
  6. Step 6: Final answer
    x = 3,688.67

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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.