Home / 3,520.06-4,857.69-1,948.21

Finding the Fourth Proportional to 3,520.06, 4,857.69 and 1,948.21

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Solution

The fourth proportional to 3,520.06, 4,857.69 and 1,948.21 is: 2,688.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.06 : 4,857.69 = 1,948.21 : x
  2. Step 2: Convert to fraction form
    3,520.06/4,857.69 = 1,948.21/x
  3. Step 3: Cross multiply
    3,520.06x = 4,857.69 × 1,948.21
  4. Step 4: Simplify right side
    3,520.06x = 9,463,800.23
  5. Step 5: Solve for x
    x = 9,463,800.23/3,520.06
  6. Step 6: Final answer
    x = 2,688.53

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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.