Home / 3,848.42-5,307.26-2,856.18

Finding the Fourth Proportional to 3,848.42, 5,307.26 and 2,856.18

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Solution

The fourth proportional to 3,848.42, 5,307.26 and 2,856.18 is: 3,938.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.42 : 5,307.26 = 2,856.18 : x
  2. Step 2: Convert to fraction form
    3,848.42/5,307.26 = 2,856.18/x
  3. Step 3: Cross multiply
    3,848.42x = 5,307.26 × 2,856.18
  4. Step 4: Simplify right side
    3,848.42x = 15,158,489.87
  5. Step 5: Solve for x
    x = 15,158,489.87/3,848.42
  6. Step 6: Final answer
    x = 3,938.89

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Half scale
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Double scale
Find fourth proportional to 3,849.42, 5,308.64 and 2,857.18
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.