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Finding the Fourth Proportional to 2,555.15, 3,529.64 and 1,973.03

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Solution

The fourth proportional to 2,555.15, 3,529.64 and 1,973.03 is: 2,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.15 : 3,529.64 = 1,973.03 : x
  2. Step 2: Convert to fraction form
    2,555.15/3,529.64 = 1,973.03/x
  3. Step 3: Cross multiply
    2,555.15x = 3,529.64 × 1,973.03
  4. Step 4: Simplify right side
    2,555.15x = 6,964,072.89
  5. Step 5: Solve for x
    x = 6,964,072.89/2,555.15
  6. Step 6: Final answer
    x = 2,725.51

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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.