Home / 2,626.13-3,937.90-1,238.28

Finding the Fourth Proportional to 2,626.13, 3,937.90 and 1,238.28

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Solution

The fourth proportional to 2,626.13, 3,937.90 and 1,238.28 is: 1,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.13 : 3,937.90 = 1,238.28 : x
  2. Step 2: Convert to fraction form
    2,626.13/3,937.90 = 1,238.28/x
  3. Step 3: Cross multiply
    2,626.13x = 3,937.90 × 1,238.28
  4. Step 4: Simplify right side
    2,626.13x = 4,876,222.81
  5. Step 5: Solve for x
    x = 4,876,222.81/2,626.13
  6. Step 6: Final answer
    x = 1,856.81

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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.