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Finding the Fourth Proportional to 1,964.64, 2,705.93 and 1,816.83

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Solution

The fourth proportional to 1,964.64, 2,705.93 and 1,816.83 is: 2,502.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.64 : 2,705.93 = 1,816.83 : x
  2. Step 2: Convert to fraction form
    1,964.64/2,705.93 = 1,816.83/x
  3. Step 3: Cross multiply
    1,964.64x = 2,705.93 × 1,816.83
  4. Step 4: Simplify right side
    1,964.64x = 4,916,205.72
  5. Step 5: Solve for x
    x = 4,916,205.72/1,964.64
  6. Step 6: Final answer
    x = 2,502.34

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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.