Home / 5,276.20-7,912.44-1,812.64

Finding the Fourth Proportional to 5,276.20, 7,912.44 and 1,812.64

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Solution

The fourth proportional to 5,276.20, 7,912.44 and 1,812.64 is: 2,718.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.20 : 7,912.44 = 1,812.64 : x
  2. Step 2: Convert to fraction form
    5,276.20/7,912.44 = 1,812.64/x
  3. Step 3: Cross multiply
    5,276.20x = 7,912.44 × 1,812.64
  4. Step 4: Simplify right side
    5,276.20x = 14,342,405.24
  5. Step 5: Solve for x
    x = 14,342,405.24/5,276.20
  6. Step 6: Final answer
    x = 2,718.32

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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.