Home / 2,630.28-3,941.66-1,931.46

Finding the Fourth Proportional to 2,630.28, 3,941.66 and 1,931.46

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Solution

The fourth proportional to 2,630.28, 3,941.66 and 1,931.46 is: 2,894.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.28 : 3,941.66 = 1,931.46 : x
  2. Step 2: Convert to fraction form
    2,630.28/3,941.66 = 1,931.46/x
  3. Step 3: Cross multiply
    2,630.28x = 3,941.66 × 1,931.46
  4. Step 4: Simplify right side
    2,630.28x = 7,613,163.65
  5. Step 5: Solve for x
    x = 7,613,163.65/2,630.28
  6. Step 6: Final answer
    x = 2,894.43

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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.