Home / 7,120.24-10,680.08-1,926.48

Finding the Fourth Proportional to 7,120.24, 10,680.08 and 1,926.48

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Solution

The fourth proportional to 7,120.24, 10,680.08 and 1,926.48 is: 2,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.24 : 10,680.08 = 1,926.48 : x
  2. Step 2: Convert to fraction form
    7,120.24/10,680.08 = 1,926.48/x
  3. Step 3: Cross multiply
    7,120.24x = 10,680.08 × 1,926.48
  4. Step 4: Simplify right side
    7,120.24x = 20,574,960.52
  5. Step 5: Solve for x
    x = 20,574,960.52/7,120.24
  6. Step 6: Final answer
    x = 2,889.64

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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.