Home / 1,254.48-1,722.28-1,222.32

Finding the Fourth Proportional to 1,254.48, 1,722.28 and 1,222.32

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Solution

The fourth proportional to 1,254.48, 1,722.28 and 1,222.32 is: 1,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.48 : 1,722.28 = 1,222.32 : x
  2. Step 2: Convert to fraction form
    1,254.48/1,722.28 = 1,222.32/x
  3. Step 3: Cross multiply
    1,254.48x = 1,722.28 × 1,222.32
  4. Step 4: Simplify right side
    1,254.48x = 2,105,177.29
  5. Step 5: Solve for x
    x = 2,105,177.29/1,254.48
  6. Step 6: Final answer
    x = 1,678.13

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.