Home / 2,810.20-4,207.20-2,518.60

Finding the Fourth Proportional to 2,810.20, 4,207.20 and 2,518.60

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Solution

The fourth proportional to 2,810.20, 4,207.20 and 2,518.60 is: 3,770.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.20 : 4,207.20 = 2,518.60 : x
  2. Step 2: Convert to fraction form
    2,810.20/4,207.20 = 2,518.60/x
  3. Step 3: Cross multiply
    2,810.20x = 4,207.20 × 2,518.60
  4. Step 4: Simplify right side
    2,810.20x = 10,596,253.92
  5. Step 5: Solve for x
    x = 10,596,253.92/2,810.20
  6. Step 6: Final answer
    x = 3,770.64

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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.