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Finding the Fourth Proportional to 3,312.96, 4,964.81 and 2,490.27

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Solution

The fourth proportional to 3,312.96, 4,964.81 and 2,490.27 is: 3,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.96 : 4,964.81 = 2,490.27 : x
  2. Step 2: Convert to fraction form
    3,312.96/4,964.81 = 2,490.27/x
  3. Step 3: Cross multiply
    3,312.96x = 4,964.81 × 2,490.27
  4. Step 4: Simplify right side
    3,312.96x = 12,363,717.40
  5. Step 5: Solve for x
    x = 12,363,717.40/3,312.96
  6. Step 6: Final answer
    x = 3,731.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.