Home / 1,772.18-2,653.14-1,335.28

Finding the Fourth Proportional to 1,772.18, 2,653.14 and 1,335.28

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Solution

The fourth proportional to 1,772.18, 2,653.14 and 1,335.28 is: 1,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.18 : 2,653.14 = 1,335.28 : x
  2. Step 2: Convert to fraction form
    1,772.18/2,653.14 = 1,335.28/x
  3. Step 3: Cross multiply
    1,772.18x = 2,653.14 × 1,335.28
  4. Step 4: Simplify right side
    1,772.18x = 3,542,671.51
  5. Step 5: Solve for x
    x = 3,542,671.51/1,772.18
  6. Step 6: Final answer
    x = 1,999.05

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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.