Home / 3,290.57-4,935.89-1,903.07

Finding the Fourth Proportional to 3,290.57, 4,935.89 and 1,903.07

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Solution

The fourth proportional to 3,290.57, 4,935.89 and 1,903.07 is: 2,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.57 : 4,935.89 = 1,903.07 : x
  2. Step 2: Convert to fraction form
    3,290.57/4,935.89 = 1,903.07/x
  3. Step 3: Cross multiply
    3,290.57x = 4,935.89 × 1,903.07
  4. Step 4: Simplify right side
    3,290.57x = 9,393,309.99
  5. Step 5: Solve for x
    x = 9,393,309.99/3,290.57
  6. Step 6: Final answer
    x = 2,854.62

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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.