Home / 1,872.64-2,585.82-1,210.06

Finding the Fourth Proportional to 1,872.64, 2,585.82 and 1,210.06

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Solution

The fourth proportional to 1,872.64, 2,585.82 and 1,210.06 is: 1,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.64 : 2,585.82 = 1,210.06 : x
  2. Step 2: Convert to fraction form
    1,872.64/2,585.82 = 1,210.06/x
  3. Step 3: Cross multiply
    1,872.64x = 2,585.82 × 1,210.06
  4. Step 4: Simplify right side
    1,872.64x = 3,128,997.35
  5. Step 5: Solve for x
    x = 3,128,997.35/1,872.64
  6. Step 6: Final answer
    x = 1,670.90

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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.