Home / 3,520.24-4,857.88-1,948.36

Finding the Fourth Proportional to 3,520.24, 4,857.88 and 1,948.36

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Solution

The fourth proportional to 3,520.24, 4,857.88 and 1,948.36 is: 2,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.24 : 4,857.88 = 1,948.36 : x
  2. Step 2: Convert to fraction form
    3,520.24/4,857.88 = 1,948.36/x
  3. Step 3: Cross multiply
    3,520.24x = 4,857.88 × 1,948.36
  4. Step 4: Simplify right side
    3,520.24x = 9,464,899.08
  5. Step 5: Solve for x
    x = 9,464,899.08/3,520.24
  6. Step 6: Final answer
    x = 2,688.71

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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.