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Finding the Fourth Proportional to 3,485.68, 4,811.16 and 2,088.88

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Solution

The fourth proportional to 3,485.68, 4,811.16 and 2,088.88 is: 2,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.68 : 4,811.16 = 2,088.88 : x
  2. Step 2: Convert to fraction form
    3,485.68/4,811.16 = 2,088.88/x
  3. Step 3: Cross multiply
    3,485.68x = 4,811.16 × 2,088.88
  4. Step 4: Simplify right side
    3,485.68x = 10,049,935.90
  5. Step 5: Solve for x
    x = 10,049,935.90/3,485.68
  6. Step 6: Final answer
    x = 2,883.21

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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.