Home / 3,731.84-5,148.16-2,405.12

Finding the Fourth Proportional to 3,731.84, 5,148.16 and 2,405.12

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Solution

The fourth proportional to 3,731.84, 5,148.16 and 2,405.12 is: 3,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.84 : 5,148.16 = 2,405.12 : x
  2. Step 2: Convert to fraction form
    3,731.84/5,148.16 = 2,405.12/x
  3. Step 3: Cross multiply
    3,731.84x = 5,148.16 × 2,405.12
  4. Step 4: Simplify right side
    3,731.84x = 12,381,942.58
  5. Step 5: Solve for x
    x = 12,381,942.58/3,731.84
  6. Step 6: Final answer
    x = 3,317.92

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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.