Home / 2,239.30-3,089.87-1,244.55

Finding the Fourth Proportional to 2,239.30, 3,089.87 and 1,244.55

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Solution

The fourth proportional to 2,239.30, 3,089.87 and 1,244.55 is: 1,717.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.30 : 3,089.87 = 1,244.55 : x
  2. Step 2: Convert to fraction form
    2,239.30/3,089.87 = 1,244.55/x
  3. Step 3: Cross multiply
    2,239.30x = 3,089.87 × 1,244.55
  4. Step 4: Simplify right side
    2,239.30x = 3,845,497.71
  5. Step 5: Solve for x
    x = 3,845,497.71/2,239.30
  6. Step 6: Final answer
    x = 1,717.28

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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.