Home / 2,188.58-3,020.36-1,244.39

Finding the Fourth Proportional to 2,188.58, 3,020.36 and 1,244.39

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Solution

The fourth proportional to 2,188.58, 3,020.36 and 1,244.39 is: 1,717.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.58 : 3,020.36 = 1,244.39 : x
  2. Step 2: Convert to fraction form
    2,188.58/3,020.36 = 1,244.39/x
  3. Step 3: Cross multiply
    2,188.58x = 3,020.36 × 1,244.39
  4. Step 4: Simplify right side
    2,188.58x = 3,758,484.46
  5. Step 5: Solve for x
    x = 3,758,484.46/2,188.58
  6. Step 6: Final answer
    x = 1,717.32

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1.5x scale

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.