Home / 2,628.16-3,626.40-1,508.80

Finding the Fourth Proportional to 2,628.16, 3,626.40 and 1,508.80

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Solution

The fourth proportional to 2,628.16, 3,626.40 and 1,508.80 is: 2,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.16 : 3,626.40 = 1,508.80 : x
  2. Step 2: Convert to fraction form
    2,628.16/3,626.40 = 1,508.80/x
  3. Step 3: Cross multiply
    2,628.16x = 3,626.40 × 1,508.80
  4. Step 4: Simplify right side
    2,628.16x = 5,471,512.32
  5. Step 5: Solve for x
    x = 5,471,512.32/2,628.16
  6. Step 6: Final answer
    x = 2,081.88

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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.