Home / 3,848.81-5,310.15-2,355.17

Finding the Fourth Proportional to 3,848.81, 5,310.15 and 2,355.17

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Solution

The fourth proportional to 3,848.81, 5,310.15 and 2,355.17 is: 3,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.81 : 5,310.15 = 2,355.17 : x
  2. Step 2: Convert to fraction form
    3,848.81/5,310.15 = 2,355.17/x
  3. Step 3: Cross multiply
    3,848.81x = 5,310.15 × 2,355.17
  4. Step 4: Simplify right side
    3,848.81x = 12,506,305.98
  5. Step 5: Solve for x
    x = 12,506,305.98/3,848.81
  6. Step 6: Final answer
    x = 3,249.40

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Double scale
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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.