Home / 1,872.96-2,584.20-1,210.68

Finding the Fourth Proportional to 1,872.96, 2,584.20 and 1,210.68

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Solution

The fourth proportional to 1,872.96, 2,584.20 and 1,210.68 is: 1,670.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.96 : 2,584.20 = 1,210.68 : x
  2. Step 2: Convert to fraction form
    1,872.96/2,584.20 = 1,210.68/x
  3. Step 3: Cross multiply
    1,872.96x = 2,584.20 × 1,210.68
  4. Step 4: Simplify right side
    1,872.96x = 3,128,639.26
  5. Step 5: Solve for x
    x = 3,128,639.26/1,872.96
  6. Step 6: Final answer
    x = 1,670.43

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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.