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Finding the Fourth Proportional to 2,485.92, 3,724.88 and 923.76

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Solution

The fourth proportional to 2,485.92, 3,724.88 and 923.76 is: 1,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.92 : 3,724.88 = 923.76 : x
  2. Step 2: Convert to fraction form
    2,485.92/3,724.88 = 923.76/x
  3. Step 3: Cross multiply
    2,485.92x = 3,724.88 × 923.76
  4. Step 4: Simplify right side
    2,485.92x = 3,440,895.15
  5. Step 5: Solve for x
    x = 3,440,895.15/2,485.92
  6. Step 6: Final answer
    x = 1,384.15

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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.