Home / 3,128.48-4,318.08-1,950.92

Finding the Fourth Proportional to 3,128.48, 4,318.08 and 1,950.92

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Solution

The fourth proportional to 3,128.48, 4,318.08 and 1,950.92 is: 2,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.48 : 4,318.08 = 1,950.92 : x
  2. Step 2: Convert to fraction form
    3,128.48/4,318.08 = 1,950.92/x
  3. Step 3: Cross multiply
    3,128.48x = 4,318.08 × 1,950.92
  4. Step 4: Simplify right side
    3,128.48x = 8,424,228.63
  5. Step 5: Solve for x
    x = 8,424,228.63/3,128.48
  6. Step 6: Final answer
    x = 2,692.75

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Double scale
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Similar ratio
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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.