Home / 2,285.99-3,154.66-1,238.05

Finding the Fourth Proportional to 2,285.99, 3,154.66 and 1,238.05

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Solution

The fourth proportional to 2,285.99, 3,154.66 and 1,238.05 is: 1,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.99 : 3,154.66 = 1,238.05 : x
  2. Step 2: Convert to fraction form
    2,285.99/3,154.66 = 1,238.05/x
  3. Step 3: Cross multiply
    2,285.99x = 3,154.66 × 1,238.05
  4. Step 4: Simplify right side
    2,285.99x = 3,905,626.81
  5. Step 5: Solve for x
    x = 3,905,626.81/2,285.99
  6. Step 6: Final answer
    x = 1,708.51

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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.