Home / 1,455.31-2,009.75-1,244.27

Finding the Fourth Proportional to 1,455.31, 2,009.75 and 1,244.27

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Solution

The fourth proportional to 1,455.31, 2,009.75 and 1,244.27 is: 1,718.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.31 : 2,009.75 = 1,244.27 : x
  2. Step 2: Convert to fraction form
    1,455.31/2,009.75 = 1,244.27/x
  3. Step 3: Cross multiply
    1,455.31x = 2,009.75 × 1,244.27
  4. Step 4: Simplify right side
    1,455.31x = 2,500,664.69
  5. Step 5: Solve for x
    x = 2,500,664.69/1,455.31
  6. Step 6: Final answer
    x = 1,718.31

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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.