Home / 7,106.24-10,659.36-1,912.64

Finding the Fourth Proportional to 7,106.24, 10,659.36 and 1,912.64

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Solution

The fourth proportional to 7,106.24, 10,659.36 and 1,912.64 is: 2,868.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.24 : 10,659.36 = 1,912.64 : x
  2. Step 2: Convert to fraction form
    7,106.24/10,659.36 = 1,912.64/x
  3. Step 3: Cross multiply
    7,106.24x = 10,659.36 × 1,912.64
  4. Step 4: Simplify right side
    7,106.24x = 20,387,518.31
  5. Step 5: Solve for x
    x = 20,387,518.31/7,106.24
  6. Step 6: Final answer
    x = 2,868.96

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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.