Home / 2,851.65-3,935.66-1,672.83

Finding the Fourth Proportional to 2,851.65, 3,935.66 and 1,672.83

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Solution

The fourth proportional to 2,851.65, 3,935.66 and 1,672.83 is: 2,308.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.65 : 3,935.66 = 1,672.83 : x
  2. Step 2: Convert to fraction form
    2,851.65/3,935.66 = 1,672.83/x
  3. Step 3: Cross multiply
    2,851.65x = 3,935.66 × 1,672.83
  4. Step 4: Simplify right side
    2,851.65x = 6,583,681.75
  5. Step 5: Solve for x
    x = 6,583,681.75/2,851.65
  6. Step 6: Final answer
    x = 2,308.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.