Home / 1,838.64-2,537.48-1,249.20

Finding the Fourth Proportional to 1,838.64, 2,537.48 and 1,249.20

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Solution

The fourth proportional to 1,838.64, 2,537.48 and 1,249.20 is: 1,724.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.64 : 2,537.48 = 1,249.20 : x
  2. Step 2: Convert to fraction form
    1,838.64/2,537.48 = 1,249.20/x
  3. Step 3: Cross multiply
    1,838.64x = 2,537.48 × 1,249.20
  4. Step 4: Simplify right side
    1,838.64x = 3,169,820.02
  5. Step 5: Solve for x
    x = 3,169,820.02/1,838.64
  6. Step 6: Final answer
    x = 1,724.00

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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.