Home / 3,807.42-5,254.20-2,235.21

Finding the Fourth Proportional to 3,807.42, 5,254.20 and 2,235.21

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Solution

The fourth proportional to 3,807.42, 5,254.20 and 2,235.21 is: 3,084.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.42 : 5,254.20 = 2,235.21 : x
  2. Step 2: Convert to fraction form
    3,807.42/5,254.20 = 2,235.21/x
  3. Step 3: Cross multiply
    3,807.42x = 5,254.20 × 2,235.21
  4. Step 4: Simplify right side
    3,807.42x = 11,744,240.38
  5. Step 5: Solve for x
    x = 11,744,240.38/3,807.42
  6. Step 6: Final answer
    x = 3,084.57

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Half scale
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Double scale
Find fourth proportional to 3,808.42, 5,255.58 and 2,236.21
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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.