Home / 2,009.60-2,772.48-1,263.28

Finding the Fourth Proportional to 2,009.60, 2,772.48 and 1,263.28

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Solution

The fourth proportional to 2,009.60, 2,772.48 and 1,263.28 is: 1,742.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.60 : 2,772.48 = 1,263.28 : x
  2. Step 2: Convert to fraction form
    2,009.60/2,772.48 = 1,263.28/x
  3. Step 3: Cross multiply
    2,009.60x = 2,772.48 × 1,263.28
  4. Step 4: Simplify right side
    2,009.60x = 3,502,418.53
  5. Step 5: Solve for x
    x = 3,502,418.53/2,009.60
  6. Step 6: Final answer
    x = 1,742.84

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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.