Home / 2,629.16-3,936.70-1,587.70

Finding the Fourth Proportional to 2,629.16, 3,936.70 and 1,587.70

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Solution

The fourth proportional to 2,629.16, 3,936.70 and 1,587.70 is: 2,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.16 : 3,936.70 = 1,587.70 : x
  2. Step 2: Convert to fraction form
    2,629.16/3,936.70 = 1,587.70/x
  3. Step 3: Cross multiply
    2,629.16x = 3,936.70 × 1,587.70
  4. Step 4: Simplify right side
    2,629.16x = 6,250,305.50
  5. Step 5: Solve for x
    x = 6,250,305.50/2,629.16
  6. Step 6: Final answer
    x = 2,377.30

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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.