Home / 1,872.12-2,810.07-1,688.25

Finding the Fourth Proportional to 1,872.12, 2,810.07 and 1,688.25

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Solution

The fourth proportional to 1,872.12, 2,810.07 and 1,688.25 is: 2,534.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.12 : 2,810.07 = 1,688.25 : x
  2. Step 2: Convert to fraction form
    1,872.12/2,810.07 = 1,688.25/x
  3. Step 3: Cross multiply
    1,872.12x = 2,810.07 × 1,688.25
  4. Step 4: Simplify right side
    1,872.12x = 4,744,100.68
  5. Step 5: Solve for x
    x = 4,744,100.68/1,872.12
  6. Step 6: Final answer
    x = 2,534.08

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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.