Home / 2,317.80-3,472.22-1,288.68

Finding the Fourth Proportional to 2,317.80, 3,472.22 and 1,288.68

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Solution

The fourth proportional to 2,317.80, 3,472.22 and 1,288.68 is: 1,930.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.80 : 3,472.22 = 1,288.68 : x
  2. Step 2: Convert to fraction form
    2,317.80/3,472.22 = 1,288.68/x
  3. Step 3: Cross multiply
    2,317.80x = 3,472.22 × 1,288.68
  4. Step 4: Simplify right side
    2,317.80x = 4,474,580.47
  5. Step 5: Solve for x
    x = 4,474,580.47/2,317.80
  6. Step 6: Final answer
    x = 1,930.53

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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.